8.6

CVE-2021-34792: cisco adaptive_security_appliance_software Uncontrolled Resource Consumption

CVSS: 8.6v3.1HighModified
Published 27-10-2021Last modified 07-11-2024
Open JSON

Vulnerability summary

CVE-2021-34792 is a high (CVSS 8.6) Uncontrolled Resource Consumption vulnerability in cisco adaptive_security_appliance_software. EPSS estimates a 1.44% chance of exploitation in the next 30 days, higher than 72.8% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.1 (CVE.org)
EPSS score
1.44%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 27-10-2021
    PublishedVulnerability first disclosed.
  2. 07-11-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the memory management of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper resource management when connection rates are high. An attacker could exploit this vulnerability by opening a significant number of connections on an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.44%

Chance of exploitation in the next 30 days

Percentile

73%

Versus all other CVEs

30-day change

+0.01 pp

From 1.43% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.44%

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

Cisco11 products
  • adaptive_security_appliance_software≥ 9.8.0, < 9.8.4.40 | ≥ 9.12.0, < 9.12.4.29 | ≥ 9.14.0, < 9.14.3.9 | ≥ 9.15.0, < 9.15.1.17 | ≥ 9.16.0, < 9.16.2.3
  • asa_5505_firmware009.014\(001.150\) | 099.017\(001.211\) | 099.017\(001.220\) | 099.017\(015.050\)
  • asa_5512-x_firmware009.014\(001.150\) | 099.017\(001.211\) | 099.017\(001.220\) | 099.017\(015.050\)
  • asa_5515-x_firmware009.014\(001.150\) | 099.017\(001.211\) | 099.017\(001.220\) | 099.017\(015.050\)
  • asa_5525-x_firmware009.014\(001.150\) | 099.017\(001.211\) | 099.017\(001.220\) | 099.017\(015.050\)

1 vendor · 11 products

References

1 links