CVE-2021-1488

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 1000 and 2100 Series Appliances Command Injection Vulnerability

MEDIUM

6.7

CVSS Score

Published: April 29, 2021 at 05:31 PM UTC

Updated: August 11, 2026 at 07:33 PM UTC

10 products affected across 1 vendorAdaptive Security ApplianceSecure Firewall Threat DefenseFirepower 2110

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Severity

MEDIUM6.7

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Adaptive Security Appliance · Cisco

95%

9.13 ≤ v < 9.13.1.219.14 ≤ v < 9.14.2.139.15 ≤ v < 9.15.1.10

Affected range stops below 9.13.1.21, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.14.2.13, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.15.1.10, so it looks safe — our inference, not a vendor statement

cisco-firepower-1010 (environment) · cisco-firepower-1120 (environment) · cisco-firepower-1140 (environment) · cisco-firepower-1150 (environment) · cisco-firepower-2110 (environment) · cisco-firepower-2120 (environment) · cisco-firepower-2130 (environment) · cisco-firepower-2140 (environment)

Secure Firewall Threat Defense · Cisco

95%

6.5.0 ≤ v < 6.6.46.7.0 ≤ v < 6.7.0.2

Firepower 1010 · Ciscodevice

80%

All versions

Firepower 1120 · Ciscodevice

80%

All versions

Firepower 1140 · Ciscodevice

80%

All versions