Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Firebirdsql | Firebird | >= 3.0.0, < 3.0.14 |
Related Weaknesses (CWE)
References
- https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14Release Notes
- https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7Release Notes
- https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4Release Notes
- https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-g99w-prq5-29c6ExploitVendor Advisory
FAQ
What is CVE-2026-35215?
CVE-2026-35215 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2026-35215?
CVE-2026-35215 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-35215?
Check the references section above for vendor advisories and patch information. Affected products include: Firebirdsql Firebird.