CVE-2026-58096

Discovered by AISLEPUBLISHEDCWE-130CWE-787

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 Base Scores

CVSS v3.1(Primary)
9.8

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

Affected Products

VendorProductVersionStatus
FreeBSDFreeBSD15.1-RELEASEaffected
FreeBSDFreeBSD15.0-RELEASEaffected
FreeBSDFreeBSD14.4-RELEASEaffected

Credits

  • Robert Morris(finder)
  • Décio Brandão (0xDBJ)(finder)
  • Joshua Rogers(finder)
  • Reo Shiseki(finder)

References