7.8

CVE-2021-1448: cisco cisco firepower threat defense software Improper Input Validation

CVSS: 7.8v3.0HighModified
Published 29-04-2021Last modified 08-11-2024

Vulnerability summary

CVE-2021-1448 is a high (CVSS 7.8) Improper Input Validation vulnerability in cisco cisco firepower threat defense software. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.6% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.0 (CVE.org)
EPSS score
0.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 29-04-2021
    PublishedVulnerability first disclosed.
  2. 08-11-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges on the underlying operating system of an affected device that is running in multi-instance mode. This vulnerability is due to insufficient validation of user-supplied command arguments. An attacker could exploit this vulnerability by submitting crafted input to the affected command. A successful exploit could allow the attacker to execute commands on the underlying operating system with root privileges.

CVSS metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

0.00 pp

From 0.30% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products

1 vendor · 2 products

References

1 links