CVE-2026-35215

HIGH
MEDIUM Priority: 0.04 BB Relevance: 75/100
Published: 2026-04-17 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: 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 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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
firebirdsql firebird 3.0.0 – 3.0.14

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.47%
Raw Score 0.004660
Percentile 40.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00466
2026-10-28
0.00466

Intelligence Sources

nvd ref →