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CVE-2026-34232

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CVE-2026-34232

Published: Apr 17, 2026

Modified: Apr 20, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

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 xdr_status_vector() function does not handle the isc_arg_cstring type when decoding an op_response packet, causing a server crash when one is encountered in the status vector. An unauthenticated attacker can exploit this by sending a crafted op_response packet to the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

VendorProductVersions

FirebirdSQL

firebird

affected
>= 3.0.0, < 3.0.14
affected
>= 4.0.0, < 4.0.7
affected
>= 5.0.0, < 5.0.4

Weaknesses (CWE)

CWE-228

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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