CVE-2026-20049
7.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Summary
A vulnerability in the processing of Galois/Counter Mode (GCM)-encrypted Internet Key Exchange version 2 (IKEv2) IPsec traffic of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to the allocation of an insufficiently sized block of memory. An attacker could exploit this vulnerability by sending crafted GCM-encrypted IPsec traffic to an affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a DoS condition. To exploit this vulnerability, the attacker must have valid credentials to establish a VPN connection with the affected device.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.7 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.10 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.13 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.8 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.18 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.24 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.26 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.29 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.30 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.35 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.37 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.38 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.39 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.40 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.41 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.47 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.48 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.50 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.52 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.54 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.55 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.56 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.58 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.62 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.65 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.12.4.67 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.1 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.1.28 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.2 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.2.3 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.2.7 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.2.11 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.2.13 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.2.14 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.3 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.3.3 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.3.14 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.3.15 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.3.19 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.3.23 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.9 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.14 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.19 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.27 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.38 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.39 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.42 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.48 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.55 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.57 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.61 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.62 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.67 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.70 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.71 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.76 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.82 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.16.4.84 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.7 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.9 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.10 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.11 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.13 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.15 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.20 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.30 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.33 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.39 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.45 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.17.1.46 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.1 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.1.3 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.2 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.2.5 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.2.7 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.2.8 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.3 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.3.39 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.3.46 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.3.53 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.3.55 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.3.56 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.5 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.8 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.22 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.24 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.29 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.34 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.40 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.47 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.50 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.52 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.53 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.18.4.57 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.5 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.9 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.12 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.18 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.22 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.24 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.27 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.28 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.31 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.37 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.38 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.19.1.42 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.1 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.1.5 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.2 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.2.10 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.2.21 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.2.22 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.3 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.3.4 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.3.7 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.3.9 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.3.10 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.3.13 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.3.16 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.20.3.20 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.22.1.1 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.22.1.3 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.22.1.2 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.22.1.6 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.22.2 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.23.1 | affected |
| Cisco | Cisco Secure Firewall Adaptive Security Appliance (ASA) Software | 9.23.1.3 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 6.4.0.10 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 6.4.0.11 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 6.4.0.12 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 6.4.0.13 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 6.4.0.14 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 6.4.0.15 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 6.4.0.16 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 6.4.0.17 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 6.4.0.18 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.0 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.0.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.1.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.2 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.2.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.3 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.4 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.5 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.6 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.6.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.6.2 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.6.3 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.7 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.8 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.0.8.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.1.0 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.1.0.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.1.0.2 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.1.0.3 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.0 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.0.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.2 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.3 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.4 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.4.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.5 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.5.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.6 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.7 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.5.2 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.8 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.8.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.9 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.10 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.2.10.2 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.3.0 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.3.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.3.1.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.3.1.2 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.4.0 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.4.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.4.1.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.4.2 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.4.2.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.4.2.2 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.4.2.3 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.4.2.4 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.6.0 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.6.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.6.2 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.6.2.1 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.7.0 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.7.10 | affected |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | 7.7.10.1 | affected |
Weaknesses
- CWE-131: Incorrect Calculation of Buffer Size
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.