CVE-2026-13122

Summary

OpenVPN version 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled

Affected Software

VendorProductVersion RangeStatus
OpenvpnOpenVPN2.6.0 <= 2.6.20affected
OpenvpnOpenVPN2.7_alpha1 <= 2.7.4affected

Weaknesses

  • CWE-617: CWE-617 Reachable Assertion

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References