CVE-2026-55200

Katalog CVE

CVSS 8.3 · High EPSS 0,83%

Kerentanan Integer Overflow to Buffer Overflow pada libssh2. Skor CVSS 3.1 8.3 (High) menurut NVD.

Deskripsi (NVD)

libssh2 through 1.11.1, fixed in commit 7acf3df contains an out-of-bounds write vulnerability in ssh2_transport_read() that fails to enforce upper bounds on packet_length field. Remote attackers can send crafted SSH packets with excessively large packet_length values to corrupt heap memory and achieve remote code execution.

Rincian

Terbit di NVD

17 Juni 2026

Terakhir diubah

17 September 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-680: Integer Overflow to Buffer Overflow

EPSS (30 hari)

0,83% peluang dieksploitasi; lebih tinggi dari 56,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/libssh2/libssh2/commit/97acf3dfda80c91c3a8c9f2372546301d4a1a7a8 patch
• https://github.com/libssh2/libssh2/pull/2052 patch
• https://www.vulncheck.com/advisories/libssh2-out-of-bounds-write-via-unchecked-packet-length-in-transport-c advisory pihak ketiga
• https://web.archive.org/web/20260623211210/https://github.com/bikini/exploitarium/tree/main/libssh2-cve-2026-5... exploit · advisory pihak ketiga