cvedb.io
CVE-2025-71263
HIGH · CVSS 7.4
EPSS exploitation probability: 0%
Published 2026-03-13T19:53:53.983 · Last modified 2026-06-17T10:03:58.307

Summary

In UNIX Fourth Research Edition (v4), the su command is vulnerable to a buffer overflow due to the 'password' variable having a fixed size of 100 bytes. A local user can exploit this to gain root privileges. It is unlikely that UNIX v4 is running anywhere outside of a very small number of lab environments. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Affected products

opengroup — unix

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.