CVE-2026-33337

Katalog CVE

CVSS 7.5 · High EPSS 0,81%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada firebirdsql firebird. Skor CVSS 3.1 7.5 (High) menurut github.com.

Deskripsi (NVD)

Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, when deserializing a slice packet, the xdr_datum() function does not validate that a cstring length conforms to the slice descriptor bounds, allowing a cstring longer than the allocated buffer to overflow it. An unauthenticated attacker can exploit this by sending a crafted packet to the server, potentially causing a crash or other security impact. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

Rincian

Terbit di NVD

17 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.5 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-502: Deserialization of Untrusted Data

EPSS (30 hari)

0,81% peluang dieksploitasi; lebih tinggi dari 55,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-89mq-229g-x47p exploit · advisory vendor
• 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