CVE-2026-58096

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 v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://security.freebsd.org/advisories/FreeBSD-SA-26:60.ppp.asc	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:freebsd:freebsd:14.4:p1::::::
	cpe:2.3:o:freebsd:freebsd:14.4:p2::::::
	cpe:2.3:o:freebsd:freebsd:14.4:p3::::::
	cpe:2.3:o:freebsd:freebsd:14.4:p4::::::
	cpe:2.3:o:freebsd:freebsd:14.4:p5::::::
	cpe:2.3:o:freebsd:freebsd:14.4:p6::::::
	cpe:2.3:o:freebsd:freebsd:14.4:p7::::::
	cpe:2.3:o:freebsd:freebsd:14.4:p8::::::
	cpe:2.3:o:freebsd:freebsd:15.0:p1::::::
	cpe:2.3:o:freebsd:freebsd:15.0:p10::::::
	cpe:2.3:o:freebsd:freebsd:15.0:p11::::::
	cpe:2.3:o:freebsd:freebsd:15.0:p12::::::
	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:15.0:p5::::::
	cpe:2.3:o:freebsd:freebsd:15.0:p6::::::
	cpe:2.3:o:freebsd:freebsd:15.0:p7::::::
	cpe:2.3:o:freebsd:freebsd:15.0:p8::::::
	cpe:2.3:o:freebsd:freebsd:15.0:p9::::::
	cpe:2.3:o:freebsd:freebsd:15.1:p1::::::
	cpe:2.3:o:freebsd:freebsd:15.1:p2::::::

History

No history.

Information

Published : 2026-08-26 06:16

Updated : 2026-09-10 15:39

NVD link : CVE-2026-58096

Mitre link : CVE-2026-58096

CVE.ORG link : CVE-2026-58096

JSON object : View

Products Affected

freebsd

freebsd

CWE

CWE-130

Improper Handling of Length Parameter Inconsistency

CWE-787

Out-of-bounds Write

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Undersized options would trigger an out-of-bounds write.\n\nA malicious PPP peer can exploit CVE-2026-58095 and CVE-2026-58096 to crash ppp(8) or potentially execute arbitrary code as root."}], "lastModified": "2026-09-10T15:39:04.077", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D9CC0037-3282-42C3-80D8-F6C1D43B9332"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1EADA828-3C20-43C0-A0CA-3AC7D7F23DBD"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "53D73FD2-4B06-47D3-BA2A-4363E9DE3565"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D726890B-E679-43A9-A211-D5C05BBE3941"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CBE94635-5277-4050-8098-F062091F6596"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A66308E4-DA6E-48DB-86E5-A503EE110EAD"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "59EF67B4-E572-483B-BC9E-B2D3D8DF19CE"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:14.4:p8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B47E6FB0-4176-449D-9955-09A236E9F5BC"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AA4AAA57-70A7-4717-ACF2-A253E757FF2C"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p10:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "683CEB32-A634-4363-86FB-2BDC59724E3E"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p11:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9EC8EE3F-9992-4A0F-A0CD-3B44BA086BD2"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p12:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CC1797AB-83A6-4379-865F-8AD495EACEEC"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E24ABFA6-4D12-4DE5-832B-438502C7D188"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C1C9869C-494B-4628-9AA3-4AA5B989C377"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "002AA2FE-C7BA-471A-9434-0E56A878ACBF"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B187670D-E3A2-4A0D-A653-982F8B447E78"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "047E7EE9-FB51-4CF2-A8BE-484BFD819565"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2C9768AE-9954-4B2A-9525-D7D4942406E7"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F8B9EF55-3755-452A-B067-043803099B22"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.0:p9:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EE3C4F40-A117-4B37-8CDD-096A1A763630"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.1:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E379873C-DA04-4EAA-ABF6-EB87B4B471A8"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:15.1:p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "044A3D39-A2AF-499C-8434-0A07B5854661"}], "operator": "OR"}]}], "sourceIdentifier": "secteam@freebsd.org"}