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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Cisco Cisco Secure Firewall Adaptive Security Appliance (ASA) Software affected
Version Status Constraints
9.18.1 affected
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9.18.1.3 affected
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9.18.2 affected
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9.18.2.5 affected
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9.18.2.7 affected
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9.18.2.8 affected
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9.18.3 affected
—
9.18.3.39 affected
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9.18.3.46 affected
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9.18.3.53 affected
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9.18.3.55 affected
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9.18.3.56 affected
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9.18.4 affected
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9.18.4.5 affected
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9.18.4.8 affected
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9.18.4.22 affected
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9.18.4.24 affected
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9.18.4.29 affected
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9.18.4.34 affected
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9.18.4.40 affected
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9.18.4.47 affected
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9.18.4.50 affected
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9.18.4.52 affected
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9.18.4.53 affected
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9.18.4.57 affected
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9.18.4.66 affected
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9.18.4.67 affected
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9.18.4.68 affected
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9.19.1 affected
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9.19.1.5 affected
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9.19.1.9 affected
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9.19.1.12 affected
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9.19.1.18 affected
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9.19.1.22 affected
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9.19.1.24 affected
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9.19.1.27 affected
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9.19.1.28 affected
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9.19.1.31 affected
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9.19.1.37 affected
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9.19.1.38 affected
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9.19.1.42 affected
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9.20.1 affected
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9.20.1.5 affected
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9.20.2 affected
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9.20.2.10 affected
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9.20.2.21 affected
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9.20.2.22 affected
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9.20.3 affected
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9.20.3.4 affected
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9.20.3.7 affected
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9.20.3.9 affected
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9.20.3.10 affected
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9.20.3.13 affected
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9.20.3.16 affected
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9.20.3.20 affected
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9.20.4 affected
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9.20.4.7 affected
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9.22.1.1 affected
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9.22.1.3 affected
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9.22.1.2 affected
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9.22.1.6 affected
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9.22.2 affected
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9.22.2.4 affected
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9.22.2.9 affected
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9.23.1 affected
—
9.23.1.3 affected
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9.23.1.7 affected
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9.23.1.13 affected
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Cisco Cisco Secure Firewall Threat Defense (FTD) Software affected
Version Status Constraints
7.2.0 affected
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7.2.0.1 affected
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7.2.1 affected
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7.2.2 affected
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7.2.3 affected
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7.2.4 affected
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7.2.4.1 affected
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7.2.5 affected
—
7.2.5.1 affected
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7.2.6 affected
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7.2.7 affected
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7.2.5.2 affected
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7.2.8 affected
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7.2.8.1 affected
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7.2.9 affected
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7.2.10 affected
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7.2.10.2 affected
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7.3.0 affected
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7.3.1 affected
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7.3.1.1 affected
—
7.3.1.2 affected
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7.4.0 affected
—
7.4.1 affected
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7.4.1.1 affected
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7.4.2 affected
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7.4.2.1 affected
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7.4.2.2 affected
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7.4.2.3 affected
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7.4.2.4 affected
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7.6.0 affected
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7.6.1 affected
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7.6.2 affected
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7.6.2.1 affected
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7.7.0 affected
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7.7.10 affected
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7.7.10.1 affected
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No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-eBueGdEG cve-icon cve-icon
History

Wed, 04 Mar 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 04 Mar 2026 17:30:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-401
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-03-04T21:38:38.947Z

Reserved: 2025-10-08T11:59:15.351Z

Link: CVE-2026-20014

cve-icon Vulnrichment

Updated: 2026-03-04T21:38:35.796Z

cve-icon NVD

Status : Received

Published: 2026-03-04T18:16:15.557

Modified: 2026-03-04T18:16:15.557

Link: CVE-2026-20014

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses