CVE-2024-20261

MEDIUM
Published May 22, 2024 Modified Jul 30, 2025 CWE-284

Description

A vulnerability in the file policy feature that is used to inspect encrypted archive files of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured file policy to block an encrypted archive file. This vulnerability exists because of a logic error when a specific class of encrypted archive files is inspected. An attacker could exploit this vulnerability by sending a crafted, encrypted archive file through the affected device. A successful exploit could allow the attacker to send an encrypted archive file, which could contain malware and should have been blocked and dropped at the Cisco FTD device.

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CVSS v3.1 Score

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

Weakness Type (CWE)

CWE-284 CWE-284

Affected Products

Vendor Product
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense
cisco firepower_threat_defense

References

Frequently Asked Questions

What is CVE-2024-20261? +
A vulnerability in the file policy feature that is used to inspect encrypted archive files of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured file policy to block an encrypted archive file. This vulnerability exists because of a logic error when a specific class of encrypted archive files is inspected. An attacker could exploit this vulnerability by sending a crafted, encrypted archive file through the affected device. A successful exploit could allow the attacker to send an encrypted archive file, which could contain malware and should have been blocked and dropped at the Cisco FTD device. It has a CVSS v3.1 base score of 5.8 (MEDIUM).
How severe is CVE-2024-20261? +
CVE-2024-20261 has a CVSS v3.1 score of 5.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2024-20261? +
CVE-2024-20261 affects products from cisco, specifically: firepower_threat_defense. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-20261? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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