CVE-2026-3055
9.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
Summary
Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| NetScaler | ADC | 14.1 < 66.59 | affected |
| NetScaler | ADC | 13.1 < 62.23 | affected |
| NetScaler | ADC | 13.1 FIPS and NDcPP < 37.262 | affected |
| NetScaler | Gateway | 14.1 < 66.59 | affected |
| NetScaler | Gateway | 13.1 < 62.23 | affected |
Weaknesses
- CWE-125: CWE-125 Out-of-bounds Read
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: active
- Automatable: yes
- Technical Impact: total
Additional References
- https://labs.watchtowr.com/please-we-beg-just-one-weekend-free-of-appliances-citrix-netscaler-cve-2026-3055-memory-overread-part-2/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-3055
References
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