CVE-2019-20838
Estado: ModificadaAlta (7.5)—
libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 2.77%
- Percentil entre todas las CVEs puntuadas: 86
- Fecha de la puntuación: 6/10/2026
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 (3)
CWE
- CWE-125
Referencias
- http://seclists.org/fulldisclosure/2020/Dec/32
- http://seclists.org/fulldisclosure/2021/Feb/14
- https://bugs.gentoo.org/717920
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
- https://support.apple.com/kb/HT211931
- https://support.apple.com/kb/HT212147
- https://www.pcre.org/original/changelog.txt
- http://seclists.org/fulldisclosure/2020/Dec/32
- http://seclists.org/fulldisclosure/2021/Feb/14
- https://bugs.gentoo.org/717920
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
- https://support.apple.com/kb/HT211931
- https://support.apple.com/kb/HT212147
- https://www.pcre.org/original/changelog.txt
JSON original (NVD)
Mostrar
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