# CVE-2026-58097: FreeBSD ppp buffer overflow in mp_SetEnddisc()

Source: https://junglewise.ai/threats/cve-2026-58097-freebsd-ppp-buffer-overflow-in-mp-setenddisc  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-26. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-58097 · Severity: high · CVSS 7.8 · Published 2026-08-26

FreeBSD's ppp(8) is a dial-up networking utility installed with elevated (root) privileges. A local user with network group access can trigger a buffer overflow in the mp_SetEnddisc() function by supplying a specially crafted endpoint discriminator value, potentially crashing the service or executing arbitrary code with root privileges.

Technologies: [Freebsd](https://junglewise.ai/threats/technologies/freebsd). Vendors: [Freebsd](https://junglewise.ai/threats/vendors/freebsd).

## Quick answers

**Is CVE-2026-58097 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-58097 being exploited in the wild.

**How severe is CVE-2026-58097?** High severity, with a CVSS score of 7.8, published 26 August 2026.

**Which products and versions are affected?** Freebsd All supported versions up to and including 15.0, 14.4.

**Is there a fix for CVE-2026-58097?** A patch was published on 2026-08-24: patches applied to stable/15, releng/15.1, releng/15.0, stable/14, and releng/14.4 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-58097 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-58097?** Check whether you run Freebsd at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

CVE-2026-58097 is a stack-based buffer overflow in the mp_SetEnddisc() function of FreeBSD's ppp(8) daemon. The vulnerability occurs because the function copies a user-supplied PSN (Private Switched Network) endpoint discriminator value without validating its length against the destination buffer. The attack vector is local and requires the attacker to belong to the "network" group to invoke the ppp(8) command interface. Successful exploitation allows an attacker to crash ppp(8) or execute arbitrary code with root privileges. Patches were applied to stable/15, releng/15.1, releng/15.0, stable/14, and releng/14.4 branches as of August 24-25, 2026.

## Affected products

- FreeBSD FreeBSD All supported versions up to and including 15.0, 14.4

## Timeline

- 2026-08-25: disclosed
- 2026-08-24: patched: patches applied to stable/15, releng/15.1, releng/15.0, stable/14, and releng/14.4

## References

- [https://security.freebsd.org/advisories/FreeBSD-SA-26:60.ppp.asc](https://security.freebsd.org/advisories/FreeBSD-SA-26:60.ppp.asc)

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