CVE-2026-58097
ppp(8): missing length validation in mp_SetEnddisc()
Description
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.
INFO
Published Date :
Aug. 26, 2026, 6:16 a.m.
Last Modified :
Sept. 10, 2026, 3:36 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Validate the length of user-supplied PSN endpoint values.
- Apply patches to fix mp_SetEnddisc() buffer overflow.
- Restrict access to the ppp(8) command interface.
- Monitor systems for unexpected ppp(8) crashes.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-58097.
| URL | Resource |
|---|---|
| https://security.freebsd.org/advisories/FreeBSD-SA-26:60.ppp.asc | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-58097 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-58097
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-58097 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-58097 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 10, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:freebsd:freebsd:15.0:p1:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.0:p2:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.0:p3:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.0:p4:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:14.4:p1:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:14.4:p2:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.0:p5:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.0:p6:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:14.4:p3:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:14.4:p4:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.0:p7:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.0:p8:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:14.4:p5:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.0:p9:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:14.4:p6:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:14.4:p7:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.0:p10:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.0:p11:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.1:p1:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.1:p2:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:14.4:p8:*:*:*:*:*:* *cpe:2.3:o:freebsd:freebsd:15.0:p12:*:*:*:*:*:* Added Reference Type FreeBSD: https://security.freebsd.org/advisories/FreeBSD-SA-26:60.ppp.asc Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 27, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-58097', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-26T19:25:51.709753Z'} {'id': 'CVE-2026-58097', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-26T00:00:00+00:00'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 26, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added SSVC {'id': 'CVE-2026-58097', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-26T19:25:51.709753Z'} -
New CVE Received by [email protected]
Aug. 26, 2026
Action Type Old Value New Value Added Description 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. Added CWE CWE-122 Added CWE CWE-130 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/58xxx/CVE-2026-58097.json">CVE-2026-58097</a> Added Reference https://security.freebsd.org/advisories/FreeBSD-SA-26:60.ppp.asc