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CVE-2024-20299

MEDIUM
Published 2024-10-23T17:08:13.630Z
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CVSS Score

V3.1
5.8
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.189
Higher than 18.9% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
NONE
Integrity
LOW
Availability
NONE

Description

A vulnerability in the AnyConnect firewall for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access control list (ACL) and allow traffic that should have been denied to flow through an affected device. This vulnerability is due to a logic error in populating group ACLs when an AnyConnect client establishes a new session toward an affected device. An attacker could exploit this vulnerability by establishing an AnyConnect connection to the affected device. A successful exploit could allow the attacker to bypass configured ACL rules.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Cisco

Cisco Adaptive Security Appliance (ASA) Software

Affected Versions:

9.12.3 9.8.3 9.12.1 9.8.1 9.12.2 9.8.2.45 9.8.2 9.8.4 9.14.1 9.12.4 9.8.2.26 9.8.2.24 9.8.2.15 9.8.2.14 9.8.2.35 9.8.2.20 9.8.2.8 9.8.2.17 9.8.2.28 9.8.2.33 9.8.2.38 9.8.4.25 9.12.3.2 9.12.3.7 9.8.3.18 9.8.3.14 9.8.4.15 9.8.4.8 9.8.1.7 9.8.3.29 9.14.1.10 9.12.2.5 9.8.4.22 9.12.3.12 9.8.4.7 9.8.4.17 9.8.3.16 9.8.4.20 9.8.3.11 9.12.1.3 9.8.4.3 9.12.2.4 9.8.4.12 9.12.1.2 9.8.3.26 9.8.1.5 9.12.2.9 9.12.3.9 9.8.3.21 9.8.4.10 9.12.2.1 9.12.4.2 9.14.1.6 9.8.3.8 9.14.1.15 9.14.1.19 9.8.4.26 9.12.4.4 9.14.1.30 9.8.4.29 9.12.4.7 9.15.1 9.14.2 9.12.4.8 9.8.4.32 9.12.4.10 9.14.2.4 9.15.1.7 9.14.2.8 9.12.4.13 9.8.4.33 9.15.1.10 9.14.2.13 9.8.4.34 9.12.4.18 9.15.1.15 9.8.4.35 9.14.2.15 9.12.4.24 9.16.1 9.15.1.16 9.8.4.39 9.14.3 9.12.4.26 9.16.1.28 9.14.3.1 9.12.4.29 9.14.3.9 9.16.2 9.12.4.30 9.16.2.3 9.8.4.40 9.14.3.11 9.15.1.17 9.12.4.35 9.8.4.41 9.15.1.1 9.14.3.13 9.16.2.7 9.12.4.37 9.14.3.15 9.17.1 9.16.2.11 9.14.3.18 9.16.2.13 9.12.4.39 9.12.4.38 9.8.4.43 9.14.4 9.16.2.14 9.17.1.7 9.12.4.40 9.15.1.21 9.16.3.3 9.14.4.6 9.16.3 9.16.3.14 9.17.1.9 9.14.4.7 9.12.4.41 9.17.1.10 9.8.4.44 9.18.1 9.12.4.47 9.14.4.12 9.16.3.15 9.18.1.3 9.17.1.11 9.12.4.48 9.14.4.13 9.18.2 9.16.3.19 9.17.1.13 9.12.4.50 9.14.4.14 9.17.1.15 9.8.4.45 9.12.4.52 9.14.4.15 9.16.3.23 9.18.2.5 9.16.4 9.12.4.54 9.14.4.17 9.8.4.46 9.17.1.20 9.18.2.7 9.19.1 9.16.4.9 9.12.4.55 9.18.2.8 9.8.4.48
Cisco

Cisco Firepower Threat Defense Software

Affected Versions:

6.2.3.14 6.4.0.1 6.2.3.7 6.2.3 6.4.0.2 6.2.3.9 6.2.3.1 6.2.3.2 6.4.0.5 6.2.3.10 6.4.0 6.4.0.3 6.2.3.6 6.4.0.4 6.2.3.15 6.2.3.5 6.2.3.4 6.2.3.3 6.2.3.8 6.4.0.6 6.2.3.11 6.2.3.12 6.2.3.13 6.4.0.7 6.4.0.8 6.6.0 6.4.0.9 6.2.3.16 6.6.0.1 6.6.1 6.4.0.10 6.7.0 6.4.0.11 6.6.3 6.7.0.1 6.6.4 6.4.0.12 6.7.0.2 7.0.0 6.2.3.17 7.0.0.1 6.6.5 7.0.1 7.1.0 6.4.0.13 6.6.5.1 6.2.3.18 7.0.1.1 6.7.0.3 6.4.0.14 7.1.0.1 6.6.5.2 7.0.2 6.4.0.15 7.2.0 7.0.2.1 7.0.3 6.6.7 7.1.0.2 7.2.0.1 7.0.4 7.2.1 7.0.5 6.4.0.16 7.3.0 7.2.2 7.2.3 6.6.7.1 7.3.1 7.1.0.3 7.3.1.1 6.6.7.2 7.3.1.2
cisco

adaptive_security_appliance_software

Affected Versions:

9.8.1 9.19.1 9.18.1 9.17.1 9.16.1 9.15.1 9.14.1 9.12.1
cisco

firepower_threat_defense_software

Affected Versions:

6.2.3 7.0.0

EU Vulnerability Database

Monitored by ENISA for EU cybersecurity

EU Coordination

EU Coordinated

Exploitation Status

No Known Exploitation

EUVD ID

View on ENISA

ENISA Analysis

Malicious code in bioql (PyPI)

Affected Products (ENISA)

cisco
cisco firepower threat defense software

ENISA Scoring

CVSS Score (3.1)

5.8
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

EPSS Score

0.080
probability

ENISA References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-acl-bypass-VvnLNKqf
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO
https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300

Data provided by ENISA EU Vulnerability Database. Last updated: October 3, 2025

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed MODERATE

GHSA-f7qm-mcg6-fhvg

Advisory Details

A vulnerability in the AnyConnect firewall for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured access control list (ACL) and allow traffic that should have been denied to flow through an affected device. This vulnerability is due to a logic error in populating group ACLs when an AnyConnect client establishes a new session toward an affected device. An attacker could exploit this vulnerability by establishing an AnyConnect connection to the affected device. A successful exploit could allow the attacker to bypass configured ACL rules.

CVSS Scoring

CVSS Score

5.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-20299
WEB https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-acl-bypass-VvnLNKqf
WEB https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO
WEB https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300

Advisory provided by GitHub Security Advisory Database. Published: October 23, 2024, Modified: October 23, 2024

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-acl-bypass-VvnLNKqf
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO
https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300
Published: 2024-10-23T17:08:13.630Z
Last Modified: 2024-10-24T16:39:38.139Z
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