CVE-2026-20014

HIGH EPSS 20.3%
Published Mar 4, 20263mo ago · Modified Apr 16, 20262mo ago
7.7 CVSS 3.1
High
Find Similar
Published Mar 4, 2026 3mo ago
Last Modified Apr 16, 2026 2mo ago

Description

A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, remote attacker with valid VPN user credentials to cause a DoS condition on an affected device that may also impact the availability of services to devices elsewhere in the network. This vulnerability is due to the improper processing of IKEv2 packets. An attacker could exploit this vulnerability by sending crafted, authenticated IKEv2 packets to an affected device. A successful exploit could allow the attacker to exhaust memory, causing the device to reload.

CVSS Details

Base Score
7.7
Exploitability
3.1
Impact
4.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
20.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-401

Affected Products 10

VendorProductVersionRange
ciscoadaptive_security_appliance_software*≥9.12.1  –  <9.16.4.85
ciscoadaptive_security_appliance_software*≥9.17.1  –  <9.18.4.66
ciscoadaptive_security_appliance_software*≥9.19.1  –  <9.20.4
ciscoadaptive_security_appliance_software*≥9.22.1.1  –  <9.22.2.9
ciscoadaptive_security_appliance_software*≥9.23.1  –  <9.23.1.13
ciscofirepower_threat_defense_software*≥6.4.0  –  <7.0.9
ciscofirepower_threat_defense_software*≥7.1.0  –  <7.2.11
ciscofirepower_threat_defense_software*≥7.3.0  –  <7.4.3
ciscofirepower_threat_defense_software*≥7.6.0  –  <7.6.4
ciscofirepower_threat_defense_software*≥7.7.0  –  <7.7.11

References 1

  • sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-eBueGdEG
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.