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HIGH

CVE-2026-96512

CVSS v3

7.8

HIGH

Score EPSS

0.1 %

probabilité d’exploitation au 2026-09-28

CISA KEV

Non

exploitation connue

Exploitation

—

statut SSVC

Description

A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing 'Z' timezone indicator, the time evaluation relies on the TZ environment variable inherited from the calling user. Because sudo is a setuid-root program, an unprivileged local user can set TZ to an extreme timezone offset to shift the authorization window by up to approximately 25 hours, causing expired rules to be treated as valid. This allows the user to

Détails techniques

Publiée le
2026-09-23
Dernière modification
2026-09-24

Questions fréquentes

Qu’est-ce que CVE-2026-96512 ?

A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing 'Z' timezone indicator, the time evaluation relies on the TZ environment variable inherited from the calling user. Because sudo is a setuid-root program, an unprivileged local user can set TZ to an extreme timezone offset to shift the authorization window by up to approximately 25 hours, causing expired rules to be treated as valid. This allows the user to

CVE-2026-96512 est-elle activement exploitée ?

Aucune exploitation active de CVE-2026-96512 n’est confirmée. Son score EPSS était de 0.1 % au 2026-09-28, soit la probabilité estimée d’exploitation dans les 30 prochains jours.

Quel est le score CVSS de CVE-2026-96512 ?

CVE-2026-96512 a un score de base CVSS v3 de 7.8 (gravité HIGH).

CVE-2026-96512 touche-t-elle votre environnement ?

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