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CVE-2025-20244 A vulnerability in the Remote Access SSL VPN service for Cisco Secure Firewall Adaptive Security Appliance (ASA)…

Description

A vulnerability in the Remote Access SSL VPN service for Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow a remote attacker that is authenticated as a VPN user to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to incomplete error checking when parsing an HTTP header field value. An attacker could exploit this vulnerability by sending a crafted HTTP request to a targeted Remote Access SSL VPN service on an affected device. A successful exploit could allow the attacker to cause a DoS condition, which would cause the affected device to reload.

Affected products and versions

Product Affected versions Fixed in
Cisco Adaptive Security Appliance (ASA) Software 9.22 9.22.1.1 → 9.22.1.2 No fix stated
Cisco Adaptive Security Appliance (ASA) Software 9.20 9.20.1 → 9.20.3.4 No fix stated
Cisco Adaptive Security Appliance (ASA) Software 9.19 9.19.1 → 9.19.1.31 No fix stated
Cisco Adaptive Security Appliance (ASA) Software 9.18 9.18.1 → 9.18.4.40 No fix stated
Cisco Adaptive Security Appliance (ASA) Software 9.17 9.17.1 → 9.17.1.39 No fix stated
Cisco Adaptive Security Appliance (ASA) Software 9.16 9.16.1 → 9.16.4.82 No fix stated
Cisco Adaptive Security Appliance (ASA) Software 9.14 9.14.1 → 9.14.4.24 No fix stated
Cisco Adaptive Security Appliance (ASA) Software 9.12 9.12.1 → 9.12.4.67 No fix stated
Cisco Adaptive Security Appliance (ASA) Software 9.8 9.8.1 → 9.8.4.48 No fix stated
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Product Affected versions Fixed in
Cisco Firepower Threat Defense Software 7.6.0 No fix stated
Cisco Firepower Threat Defense Software 7.4 7.4.0 → 7.4.2.3 No fix stated
Cisco Firepower Threat Defense Software 7.3 7.3.0 → 7.3.1.2 No fix stated
Cisco Firepower Threat Defense Software 7.2 7.2.0 → 7.2.8.1 No fix stated
Cisco Firepower Threat Defense Software 7.1 7.1.0 → 7.1.0.3 No fix stated
Cisco Firepower Threat Defense Software 7.0 7.0.0 → 7.0.7 No fix stated
Cisco Firepower Threat Defense Software 6.6 6.6.0 → 6.6.7.2 No fix stated
Cisco Firepower Threat Defense Software 6.4 6.4.0 → 6.4.0.18 No fix stated
Cisco Firepower Threat Defense Software 6.2 6.2.3 → 6.2.3.18 No fix stated

References

Timeline

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