Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software...

8.6 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Description

A vulnerability in the RADIUS proxy feature for the IPsec VPN feature of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.

This vulnerability is due to improper processing of IPv6 packets. An attacker could exploit this vulnerability by sending IPv6 packets over an IPsec VPN connection to an affected device. A successful exploit could allow the attacker to trigger a reload of the device, resulting in a DoS condition.

Basic Information

ID CVE-2025-20222

Source cisco

Published Aug 14, 2025 at 16:28

Modified Aug 14, 2025 at 19:20

Affected Product

Vendor Cisco

Product Cisco Firepower Threat Defense Software

Version 6.2.3

Affected Versions Cisco Cisco Firepower Threat Defense Software 6.2.3
Cisco Cisco Firepower Threat Defense Software 6.2.3.9
Cisco Cisco Firepower Threat Defense Software 6.2.3.1
Cisco Cisco Firepower Threat Defense Software 6.2.3.2
Cisco Cisco Firepower Threat Defense Software 6.2.3.10
Cisco Cisco Firepower Threat Defense Software 6.4.0
Cisco Cisco Firepower Threat Defense Software 6.4.0.3
Cisco Cisco Firepower Threat Defense Software 6.4.0.4
Cisco Cisco Firepower Threat Defense Software 6.2.3.15
Cisco Cisco Firepower Threat Defense Software 6.2.3.6
Cisco Cisco Firepower Threat Defense Software 6.2.3.7
Cisco Cisco Firepower Threat Defense Software 6.2.3.12
Cisco Cisco Firepower Threat Defense Software 6.2.3.3
Cisco Cisco Firepower Threat Defense Software 6.2.3.11
Cisco Cisco Firepower Threat Defense Software 6.4.0.6
Cisco Cisco Firepower Threat Defense Software 6.2.3.13
Cisco Cisco Firepower Threat Defense Software 6.2.3.8
Cisco Cisco Firepower Threat Defense Software 6.2.3.4
Cisco Cisco Firepower Threat Defense Software 6.4.0.1
Cisco Cisco Firepower Threat Defense Software 6.2.3.5
Cisco Cisco Firepower Threat Defense Software 6.4.0.5
Cisco Cisco Firepower Threat Defense Software 6.2.3.14
Cisco Cisco Firepower Threat Defense Software 6.4.0.2
Cisco Cisco Firepower Threat Defense Software 6.4.0.8
Cisco Cisco Firepower Threat Defense Software 6.4.0.7
Cisco Cisco Firepower Threat Defense Software 6.6.0
Cisco Cisco Firepower Threat Defense Software 6.4.0.9
Cisco Cisco Firepower Threat Defense Software 6.2.3.16
Cisco Cisco Firepower Threat Defense Software 6.6.0.1
Cisco Cisco Firepower Threat Defense Software 6.6.1
Cisco Cisco Firepower Threat Defense Software 6.4.0.10
Cisco Cisco Firepower Threat Defense Software 6.4.0.11
Cisco Cisco Firepower Threat Defense Software 6.6.3
Cisco Cisco Firepower Threat Defense Software 6.6.4
Cisco Cisco Firepower Threat Defense Software 6.4.0.12
Cisco Cisco Firepower Threat Defense Software 7.0.0
Cisco Cisco Firepower Threat Defense Software 6.2.3.17
Cisco Cisco Firepower Threat Defense Software 7.0.0.1
Cisco Cisco Firepower Threat Defense Software 6.6.5
Cisco Cisco Firepower Threat Defense Software 7.0.1
Cisco Cisco Firepower Threat Defense Software 7.1.0
Cisco Cisco Firepower Threat Defense Software 6.4.0.13
Cisco Cisco Firepower Threat Defense Software 6.6.5.1
Cisco Cisco Firepower Threat Defense Software 6.2.3.18
Cisco Cisco Firepower Threat Defense Software 7.0.1.1
Cisco Cisco Firepower Threat Defense Software 6.4.0.14
Cisco Cisco Firepower Threat Defense Software 7.1.0.1
Cisco Cisco Firepower Threat Defense Software 6.6.5.2
Cisco Cisco Firepower Threat Defense Software 7.0.2
Cisco Cisco Firepower Threat Defense Software 6.4.0.15
Cisco Cisco Firepower Threat Defense Software 7.2.0
Cisco Cisco Firepower Threat Defense Software 7.0.2.1
Cisco Cisco Firepower Threat Defense Software 7.0.3
Cisco Cisco Firepower Threat Defense Software 6.6.7
Cisco Cisco Firepower Threat Defense Software 7.2.0.1
Cisco Cisco Firepower Threat Defense Software 7.0.4
Cisco Cisco Firepower Threat Defense Software 7.2.1
Cisco Cisco Firepower Threat Defense Software 7.0.5
Cisco Cisco Firepower Threat Defense Software 6.4.0.16
Cisco Cisco Firepower Threat Defense Software 7.3.0
Cisco Cisco Firepower Threat Defense Software 7.2.2
Cisco Cisco Firepower Threat Defense Software 6.6.7.1
Cisco Cisco Firepower Threat Defense Software 7.2.3
Cisco Cisco Firepower Threat Defense Software 7.3.1
Cisco Cisco Firepower Threat Defense Software 7.1.0.3
Cisco Cisco Firepower Threat Defense Software 7.2.4
Cisco Cisco Firepower Threat Defense Software 7.0.6
Cisco Cisco Firepower Threat Defense Software 7.2.5
Cisco Cisco Firepower Threat Defense Software 7.2.4.1
Cisco Cisco Firepower Threat Defense Software 7.3.1.1
Cisco Cisco Firepower Threat Defense Software 6.4.0.17
Cisco Cisco Firepower Threat Defense Software 7.0.6.1
Cisco Cisco Firepower Threat Defense Software 7.2.5.1
Cisco Cisco Firepower Threat Defense Software 7.4.1
Cisco Cisco Firepower Threat Defense Software 7.2.6
Cisco Cisco Firepower Threat Defense Software 7.0.6.2
Cisco Cisco Firepower Threat Defense Software 7.4.1.1
Cisco Cisco Firepower Threat Defense Software 6.6.7.2
Cisco Cisco Firepower Threat Defense Software 6.4.0.18
Cisco Cisco Firepower Threat Defense Software 7.2.7
Cisco Cisco Firepower Threat Defense Software 7.2.5.2
Cisco Cisco Firepower Threat Defense Software 7.3.1.2
Cisco Cisco Firepower Threat Defense Software 7.2.8
Cisco Cisco Firepower Threat Defense Software 7.4.2
Cisco Cisco Firepower Threat Defense Software 7.2.8.1
Cisco Cisco Firepower Threat Defense Software 7.0.6.3
Cisco Cisco Firepower Threat Defense Software 7.4.2.1
Cisco Cisco Firepower Threat Defense Software 7.2.9

References

sec.cloudapps.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-fp2k-IPsec-dos-tjwgdZCO

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    "description": "A vulnerability in the RADIUS proxy feature for the IPsec VPN feature of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.\r\n\r\nThis vulnerability is due to improper processing of IPv6 packets. An attacker could exploit this vulnerability by sending IPv6 packets over an IPsec VPN connection to an affected device. A successful exploit could allow the attacker to trigger a reload of the device, resulting in a DoS condition.",
    "published": "2025-08-14T16:28:43.365Z",
    "modified": "2025-08-14T19:20:51.658Z",
    "type": "cve",
    "title": "Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software  Buffer Vulnerability",
    "source": "cisco",
    "references": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fp2k-IPsec-dos-tjwgdZCO",
    "id": "CVE-2025-20222",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
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    "sourceHref": "",
    "cvss": {
        "score": 8.6,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
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        "privilegesRequired": "",
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        "availabilityImpact": "",
        "cvssV3": {
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Cisco Firepower Threat Defense Software",
    "version": "6.2.3",
    "vendor": "Cisco",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Buffer Vulnerability_CVE-2025-20222

Description

Basic Information

Affected Product

References

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