CVE-2026-58096 | BDVDB-2026-365049 Detail

FreeBSDFreeBSD

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-130 Improper Handling of Length Parameter Inconsistency
CWE-787 Out-of-bounds Write

References#

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

Exploit#

No public exploit known

History#

Version 12026-08-26Record published in the CVE List.
Version 22026-08-27Most recent update recorded in the CVE List.

Published

Published: 2026-08-26
Last modified: 2026-08-27

Vendor information

Vendor: FreeBSD
Product: FreeBSD

All FreeBSD vulnerabilities

Score

8.8 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 49.2.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 15.1-RELEASE and < p3
Fixed
p3
Vulnerable
>= 15.0-RELEASE and < p13
Fixed
p13
Vulnerable
>= 14.4-RELEASE and < p9
Fixed
p9

Scoring System

CVSS v4.0

Not available

CVSS v3.1

8.8 High

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).