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CVE-2026-28212

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CVE-2026-28212

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 6.0.0, 5.0.4, 4.0.7 and 3.0.14, when processing an op_slice network packet, the server passes an unprepared structure containing a null pointer to the SDL_info() function, resulting in a null pointer dereference and server crash. An unauthenticated attacker can trigger this by sending a crafted packet to the server port. This issue has been fixed in versions 6.0.0, 5.0.4, 4.0.7 and 3.0.14.

VendorProductVersions

FirebirdSQL

firebird

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

Weaknesses (CWE)

CWE-476

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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