CVE-2020-12399
Estado: ModificadaMedia (4.4)—
NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
- Puntuación base: 4.4
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.65%
- Percentil entre todas las CVEs puntuadas: 50
- Fecha de la puntuación: 7/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (4)
CWE
- CWE-203
Referencias
- https://bugzilla.mozilla.org/show_bug.cgi?id=1631576
- https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html
- https://security.gentoo.org/glsa/202007-49
- https://usn.ubuntu.com/4421-1/
- https://www.debian.org/security/2020/dsa-4726
- https://www.mozilla.org/security/advisories/mfsa2020-20/
- https://www.mozilla.org/security/advisories/mfsa2020-21/
- https://www.mozilla.org/security/advisories/mfsa2020-22/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1631576
- https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html
- https://security.gentoo.org/glsa/202007-49
- https://usn.ubuntu.com/4421-1/
- https://www.debian.org/security/2020/dsa-4726
- https://www.mozilla.org/security/advisories/mfsa2020-20/
- https://www.mozilla.org/security/advisories/mfsa2020-21/
- https://www.mozilla.org/security/advisories/mfsa2020-22/
JSON original (NVD)
Mostrar
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"lastModified": "2026-06-17T02:51:45.670",
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