Skip to content
CVE Tracker
Back

CVE-2016-6431

A vulnerability in the local Certificate Authority (CA) feature of Cisco ASA Software before 9.6(1.5) could allow an unauthenticated,…

High7.5EPSS 2.5%
Published
Updated
Reserved
Assigned by
cisco

Description

A vulnerability in the local Certificate Authority (CA) feature of Cisco ASA Software before 9.6(1.5) could allow an unauthenticated, remote attacker to cause a reload of the affected system. The vulnerability is due to improper handling of crafted packets during the enrollment operation. An attacker could exploit this vulnerability by sending a crafted enrollment request to the affected system. An exploit could allow the attacker to cause the reload of the affected system. Note: Only HTTPS packets directed to the Cisco ASA interface, where the local CA is allowing user enrollment, can be used to trigger this vulnerability. This vulnerability affects systems configured in routed firewall mode and in single or multiple context mode.

Scores

CVSS scores of CVE-2016-6431, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0High7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
2.5% · top 15% of all CVEs (2 Nov 2026)

Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • Cisco ASA Software before 9.6(1.5)

    • affected Cisco ASA Software before 9.6(1.5)

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .