CVE Watch15 oct 2026

CVE-2024-6409

A race condition vulnerability was discovered in how signals are handled by OpenSSH's server (sshd). If a remote attacker does not authentic

CVSS

7.0

Alto

EPSS

27.9%

p98

KEV

—

Exploit Today

0-100

Publicado: 8 jul 2024 · Última mod.: 15 oct 2026 · CWE-364

EPSS · 30d

27.9%EPSS · 30 días27.9%

2026-10-012026-10-29

Descripción técnica

A race condition vulnerability was discovered in how signals are handled by OpenSSH's server (sshd). If a remote attacker does not authenticate within a set time period, then sshd's SIGALRM handler is called asynchronously. However, this signal handler calls various functions that are not async-signal-safe, for example, syslog(). As a consequence of a successful attack, in the worst case scenario, an attacker may be able to perform a remote code execution (RCE) as an unprivileged user running the sshd server.

Referencias oficiales

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3.6%

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1.0%

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