← Voltar para CVEs

CVE-2026-27890

HIGH

8.2

Descricao

Firebird is an open-source relational database management system. In versions prior to 5.0.4, 4.0.7 and 3.0.14, when processing CNCT_specific_data segments during authentication, the server assumes segments arrive in strictly ascending order. If segments arrive out of order, the Array class's grow() method computes a negative size value, causing a SIGSEGV crash. An unauthenticated attacker who knows only the server's IP and port can exploit this to crash the server. This issue has been fixed in versions 5.0.4, 4.0.7 and 3.0.14.

Detalhes CVE

Pontuacao CVSS v3.18.2

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado4/17/2026

Ultima modificacao4/17/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-119CWE-787

Referencias

https://github.com/FirebirdSQL/firebird/releases/tag/v3.0.14(security-advisories@github.com)

https://github.com/FirebirdSQL/firebird/releases/tag/v4.0.7(security-advisories@github.com)

https://github.com/FirebirdSQL/firebird/releases/tag/v5.0.4(security-advisories@github.com)

https://github.com/FirebirdSQL/firebird/security/advisories/GHSA-6crx-4g37-7j49(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.