CVE-2026-0883

Information disclosure in the Networking component

CVSS 5.3 MEDIUMEPSS 0.4%CWE-200

Vexday Risk Score

13Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 5.3EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

13 jan 2026Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Produtos afetados

Mozilla · Firefox Mozilla · Thunderbird

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Referências

https://bugzilla.mozilla.org/show_bug.cgi?id=1989340 https://www.mozilla.org/security/advisories/mfsa2026-01/https://www.mozilla.org/security/advisories/mfsa2026-03/https://www.mozilla.org/security/advisories/mfsa2026-04/https://www.mozilla.org/security/advisories/mfsa2026-05/