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CVE-2025-26466

MEDIUM(5.9)

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

Risk Signal Score26/100 — MITTEL
  • CVSS 5.9 — Mittel
  • EPSS 38%

EPSS-Score

38%

Exploit-Wahrscheinlichkeit (30 Tage)

CVSS Score

5.9

Technische Schwere

Beschreibung

A flaw was found in the OpenSSH package. For each ping packet the SSH server receives, a pong packet is allocated in a memory buffer and stored in a queue of packages. It is only freed when the server/client key exchange has finished. A malicious client may keep sending such packages, leading to an uncontrolled increase in memory consumption on the server side. Consequently, the server may become unavailable, resulting in a denial of service attack.

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