PT-2026-23418 · Zlib · Zlib

Calysteon · CVE-2026-27820 · Publicado 2026-03-05 · Atualizado 2026-07-16

Positive Technologies (AI Summary) · Pt

CVSS v2.0

10

Crítica

Vetor base

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

Nome do Software Vulnerável e Versões Afetadas Versões do Zlib anteriores à versão corrigida.

Descrição Há um problema de estouro de buffer no componente Zlib::GzipReader. A vulnerabilidade pode potencialmente permitir comportamentos inesperados.

Recomendações Atualize para a versão corrigida para resolver este problema.

Exploit

Correção

Buffer Overflow

Enumeração de Fraquezas

CWE-131

CWE-120

Identificadores relacionados

BDU:2026-06116

CVE-2026-27820

ECHO-CDF4-0E18-2536

GHSA-G857-HHFV-J68W

RHSA-2026:7305

RHSA-2026:7307

RHSA-2026:8838

SUSE-SU-2026:1066-1

USN-8556-1

Produtos afetados

Zlib

Referências · 39

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27820.json · Exploit
• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/zlib/CVE-2026-27820.yml · Exploit
• https://github.com/ruby/zlib/security/advisories/GHSA-g857-hhfv-j68w · Aviso do Fabricante
• https://github.com/ruby/zlib · Nota
• https://ubuntu.com/security/CVE-2026-42258 · Aviso do Fabricante
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-27820 · Aviso do Fabricante
• https://osv.dev/vulnerability/GHSA-g857-hhfv-j68w · Aviso do Fabricante
• https://osv.dev/vulnerability/BELL-CVE-2026-27820 · Aviso do Fabricante
• https://bugzilla.suse.com/1250016 · Nota
• https://osv.dev/vulnerability/USN-8556-1 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2025-58767 · Nota
• https://osv.dev/vulnerability/ALPINE-CVE-2026-27820 · Aviso do Fabricante
• https://suse.com/support/update/announcement/2026/suse-su-20261066-1 · Nota
• https://twitter.com/changewatchdev/status/2036983979434213724 · Publicação no Twitter
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-27820 · Aviso do Fabricante