CVE-2025-49832
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Asterisk is an open source private branch exchange and telephony toolkit. In versions up to and including 18.26.2, between 20.00.0 and 20.15.0, 20.7-cert6, 21.00.0, 22.00.0 through 22.5.0, there is a remote DoS and possible RCE condition in asterisk/res/res_stir_shaken /verification.c that can be exploited when an attacker can set an arbitrary Identity header, or STIR/SHAKEN is enabled, with verification set in the SIP profile associated with the endpoint to be attacked. This is fixed in versions 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 and 22.5.1.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| asterisk | asterisk | < 18.26.3 | affected |
| asterisk | asterisk | >= 20.00.0, < 20.15.1 | affected |
| asterisk | asterisk | >= 21.00.0, < 21.10.1 | affected |
| asterisk | asterisk | >= 22.00.0, < 22.5.1 | affected |
| asterisk | asterisk | >= 20.7-cert6, < 20.7-cert7 | affected |
Weaknesses
- CWE-476: CWE-476: NULL Pointer Dereference
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
References
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