CVE-2026-58096 — HIGH (8.8)

Vulnerability Description

LcpDecodeConfig() did not validate the length of received endpoint discriminator options against the minimum required by RFC 1717. Undersized options would trigger an out-of-bounds write. A malicious PPP peer can exploit CVE-2026-58095 and CVE-2026-58096 to crash ppp(8) or potentially execute arbitrary code as root.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Freebsd	Freebsd	14.4

Related Weaknesses (CWE)

CWE-130 CWE-787

References

https://security.freebsd.org/advisories/FreeBSD-SA-26:60.ppp.ascVendor Advisory

FAQ

What is CVE-2026-58096?

CVE-2026-58096 is a vulnerability with a CVSS score of 8.8 (HIGH). LcpDecodeConfig() did not validate the length of received endpoint discriminator options against the minimum required by RFC 1717. Undersized options would trigger an out-of-bounds write. A maliciou...

How severe is CVE-2026-58096?

CVE-2026-58096 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-58096?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.