What is CVE-2026-58097?

CVE-2026-58097 is a high-severity vulnerability in FreeBSD, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-08-26.

How severe is CVE-2026-58097?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in FreeBSD

CVE-2026-58097

mp_SetEnddisc() copied a user-supplied PSN endpoint value without length validation, allowing a buffer overflow via the ppp(8) command interface. A local user with access to the ppp(8) command interface can crash ppp(8) or potentially execute arbitrary code as root.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (18.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Freebsd

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow
CWE-130 — Improper Handling of Length Parameter Inconsistency

References

secteam@freebsd.org (vendor-advisory)

Frequently asked questions

What is CVE-2026-58097?: CVE-2026-58097 is a high-severity vulnerability in FreeBSD, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-08-26.
How severe is CVE-2026-58097?: High severity. CVSS v3 base score is 7.8 out of 10.