CVE-2021-1493
Last modified
CVE-2021-1493 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a buffer overflow on an affected system. The vulnerability is due to insufficient boundary checks for specific data that is provided to the web services interface of an affected system. EPSS estimates a 1.20% chance of exploitation in the next 30 days.
Description
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a buffer overflow on an affected system. The vulnerability is due to insufficient boundary checks for specific data that is provided to the web services interface of an affected system. An attacker could exploit this vulnerability by sending a malicious HTTP request. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system, which could disclose data fragments or cause the device to reload, resulting in a denial of service (DoS) condition.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Secure Firewall Threat Defense | < 6.4.0.12 |
| Cisco | Secure Firewall Threat Defense | >= 6.5.0, < 6.6.3 |
| Cisco | Secure Firewall Threat Defense | >= 6.7.0, < 6.7.0.1 |
| Cisco | Adaptive Security Appliance Software | >= 9.8, < 9.8.4.34 |
| Cisco | Adaptive Security Appliance Software | >= 9.9, < 9.9.2.85 |
| Cisco | Adaptive Security Appliance Software | >= 9.10, < 9.12.4.13 |
| Cisco | Adaptive Security Appliance Software | >= 9.13, < 9.13.1.21 |
| Cisco | Adaptive Security Appliance Software | >= 9.14, < 9.14.2.8 |
| Cisco | Adaptive Security Appliance Software | >= 9.15, < 9.15.1.7 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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