CVE-2025-26466

Katalog CVE

CVSS 5.9 · Medium EPSS 40,7%

Kerentanan Allocation of Resources Without Limits or Throttling pada openbsd openssh, canonical ubuntu linux +1 lainnya. Skor CVSS 3.1 5.9 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

28 Februari 2025

Terakhir diubah

8 Oktober 2026

Status NVD

Modified

CVSS 3.1

5.9 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-770: Allocation of Resources Without Limits or Throttling

EPSS (30 hari)

40,7% peluang dieksploitasi; lebih tinggi dari 98,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/security/cve/CVE-2025-26466 advisory pihak ketiga
• https://www.qualys.com/2025/02/18/openssh-mitm-dos.txt advisory pihak ketiga
• https://bugzilla.suse.com/show_bug.cgi?id=1237041 advisory pihak ketiga
• https://security-tracker.debian.org/tracker/CVE-2025-26466 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20250228-0002/ advisory pihak ketiga
• https://ubuntu.com/security/CVE-2025-26466 advisory pihak ketiga
• https://www.openwall.com/lists/oss-security/2025/02/18/1 mailing list · advisory pihak ketiga
• https://www.openwall.com/lists/oss-security/2025/02/18/4 mailing list · advisory pihak ketiga
• https://access.redhat.com/errata/RHBA-2025:6305
• https://access.redhat.com/errata/RHSA-2025:6993
• https://bugzilla.redhat.com/show_bug.cgi?id=2345043 issue tracking
• https://seclists.org/oss-sec/2025/q1/144
• http://seclists.org/fulldisclosure/2025/Feb/18
• http://seclists.org/fulldisclosure/2025/May/7
• http://seclists.org/fulldisclosure/2025/May/8
• https://www.vicarius.io/vsociety/posts/cve-2025-26466-detection-script-memory-consumption-vulnerability-in-ope...
• https://www.vicarius.io/vsociety/posts/cve-2025-26466-mitigation-script-memory-consumption-vulnerability-in-op...