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CVE-2026-35215

7.5 high SSVC exploitation: poc Analyzed
NVD · CVE.org

Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, the sdl_desc() function does not validate the length of a decoded SDL descriptor from a slice packet. A zero-length descriptor is later used to calculate the number of slice items, causing a division by zero. An unauthenticated attacker can exploit this by sending a crafted slice packet to crash the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.5 · firebirdsqlNVD modified 2026-10-26 22:10

Affected (CPE criteria) 1

  • cpe:2.3:a:firebirdsql:firebird:*:*:*:*:*:*:*:*

References 4