๐Ÿ›ก๏ธ CVE-2025-4877
๐ŸŸก CVSS 4.5 โ€” Medium โœ… No Known Exploit CWE-787 NVD
4.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

There's a vulnerability in the libssh package where when a libssh consumer passes in an unexpectedly large input buffer to ssh_get_fingerprint_hash() function. In such cases the bin_to_base64() function can experience an integer overflow leading to a memory under allocation, when that happens it's possible that the program perform out of bounds write leading to a heap corruption. This issue affects only 32-bits builds of libssh.

Details

Severity MEDIUM
CVSS Score 4.5
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
CWE CWE-787
Public Exploit โœ… No
Source NVD
Published 2025-08-20
Updated 2026-06-02
Modified 2026-05-19
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown โ€” โ€”

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