CVE-2021-1488 json
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 1000 and 2100 Series Appliances Command Injection Vulnerability
published 2021-04-29 5 y ago modified 2026-08-11 2 mo ago also EUVD-2021-6955
- cvss
- 6.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
A vulnerability in the upgrade process of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to inject commands that could be executed with root privileges on the underlying operating system (OS). This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by uploading a crafted upgrade package file to an affected device. A successful exploit could allow the attacker to inject commands that could be executed with root privileges on the underlying OS.
Patch / fix
- cisco secure_firewall_threat_defense 6.6.4, 6.7.0.2
- cisco adaptive_security_appliance_software 9.13.1.21, 9.14.2.13, 9.15.1.10
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- Cisco Cisco Adaptive Security Appliance (ASA) Software
Classification
References
Sources
- CVE List CVE-2021-1488
- NVD CVE-2021-1488
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