PT-2026-33483 · Firebird+1 · Firebird+1

Highdyemanov · Published 2026-04-17 · Updated 2026-05-15 · CVE-2026-34232

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Firebird versions prior to 5.0.4 Firebird versions prior to 4.0.7 Firebird versions prior to 3.0.14

Description The xdr status vector() function fails to handle the isc arg cstring type during the decoding of an 'op response' packet. This allows an unauthenticated attacker to cause a server crash by sending a specially crafted 'op response' packet to the server.

Recommendations Update to version 5.0.4 Update to version 4.0.7 Update to version 3.0.14

Fix

DoS

Weakness Enumeration

CWE-228

Related Identifiers

BDU:2026-05713

CVE-2026-34232

OESA-2026-2013

OESA-2026-2014

OESA-2026-2015

OESA-2026-2016

OESA-2026-2017

Affected Products

Firebird

Red Os

References · 35

• https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-7jq3-6j3c-5cm2 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-34232 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-35215 · Security Note
• https://osv.dev/vulnerability/OESA-2026-2015 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-34232 · Security Note
• https://osv.dev/vulnerability/OESA-2026-2017 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-28224 · Security Note
• https://ubuntu.com/security/CVE-2026-34232 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-34232 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-28214 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-65104 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-40342 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-33337 · Security Note
• https://osv.dev/vulnerability/OESA-2026-2014 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2013 · Vendor Advisory