Detections
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Cisco Adaptive Security Appliance Software, Firepower Threat Defense Software, IOS Software, and IOS XE Software IKEv2 DoS (cisco-sa-multiprod-ikev2-dos-gPctUqv2)

high Nessus Plugin ID 325643

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Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco Adaptive Security Appliance (ASA) Software is affected by a vulnerability.

 - A vulnerability in the Internet Key Exchange version 2 (IKEv2) protocol processing of Cisco Adaptive Security Appliance (ASA) Software, Cisco Firepower Threat Defense (FTD) Software, Cisco IOS Software, and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation when processing IKEv2 messages. An attacker could exploit this vulnerability by sending crafted IKEv2 traffic to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition on the affected device. (CVE-2025-20182)

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCwj99043, CSCwk40885

See Also

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwj99043

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwk40885

http://www.nessus.org/u?564dd2a1

http://www.nessus.org/u?e196a640

Plugin Details

Severity: High

ID: 325643

File Name: cisco-sa-multiprod-ikev2-dos-gPctUqv2-asa.nasl

Version: 1.1

Type: Local

Family: CISCO

Published: 7/8/2026

Updated: 7/8/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 50.87

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2025-20182

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:adaptive_security_appliance_software

Required KB Items: Host/Cisco/ASA/model

Exploit Ease: No known exploits are available

Patch Publication Date: 5/7/2025

Vulnerability Publication Date: 5/7/2025

Reference Information

CVE: CVE-2025-20182