WID-SEC-W-2026-2516

csafDEcert_bund

DeutschShown in its original language — a full translation is planned for a future version.

libssh2: Mehrere Schwachstellen

view advisory published 2026-07-26

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in libssh2 ausnutzen, um möglicherweise vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen oder beliebigen Code auszuführen.

01

describes (4)

Related CVEs.

IDseverity exploitable
CVE-2026-66035US——
libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any…
CVE-2026-66034US——
libssh2 through 1.11.1, fixed in commit a13bb6c, contains a missing bounds check vulnerability that allows a malicious SSH server to trigger an arbitrary-length heap out-of-bounds…
CVE-2026-66033US——
libssh2 through 1.11.1, fixed in commit a2ed82d, contains a pre-authentication integer underflow vulnerability in the ssh2_cipher_crypt() function in src/openssl.c that allows a ma…
CVE-2026-66032US——
libssh2 through 1.11.1, fixed in commit 5e47761, contains a double-free vulnerability in the sftp_open() function in src/sftp.c that allows a malicious SSH server to corrupt the he…
02

references

External citations — patches, advisories, analysis.

scry

Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.

Free scan