CVE-2026-35215

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:firebirdsql:firebird::::::::
	cpe:2.3:a:firebirdsql:firebird::::::::
	cpe:2.3:a:firebirdsql:firebird::::::::

History

No history.

Information

Published : 2026-04-17 20:16

Updated : 2026-06-17 10:40

NVD link : CVE-2026-35215

Mitre link : CVE-2026-35215

CVE.ORG link : CVE-2026-35215

JSON object : View

Products Affected

firebirdsql

firebird

CWE

CWE-369

Divide By Zero

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