CVE-2026-35215

7.5 HIGH
Published: April 17, 2026 Modified: April 27, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14
Source: security-advisories@github.com
Release Notes
https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7
Source: security-advisories@github.com
Release Notes
https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4
Source: security-advisories@github.com
Release Notes
https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-g99w-prq5-29c6
Source: security-advisories@github.com
Exploit Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.1%
29th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

firebirdsql