cvedb.io
CVE-2025-4877
MEDIUM · CVSS 4.5
EPSS exploitation probability: 0%
Published 2025-08-20T13:15:28.890 · Last modified 2026-06-30T11:16:23.063

Summary

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.

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References

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