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CVE-2024-20261

A vulnerability in the file policy feature that is used to inspect encrypted archive files of Cisco Firepower Threat Defense (FTD)…

Medium5.8EPSS 0.37%
Published
Updated
Reserved
Assigned by
cisco

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.

Timeline

  1. ID reserved

    By cisco

  2. · 7 months later

    Published

  3. · 6 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2024-20261, by who scored it
Scored byCVSSScoreVector
ciscoCNA (assigner)3.1Medium5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
NVDNVD · Analyzed3.1Medium5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
EPSS (exploitation in 30 days)
0.37% · top 69% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.

Weakness

Affected products

  • Cisco · Cisco Firepower Threat Defense Software

    • affected 6.2.3
    • affected 6.2.3.1
    • affected 6.2.3.2
    • affected 6.2.3.3
    • affected 6.2.3.4
    • affected 6.2.3.5
    • affected 6.2.3.6
    • affected 6.2.3.7
    • affected 6.2.3.8
    • affected 6.2.3.10
    • affected 6.2.3.11
    • affected 6.2.3.9
    • affected 6.2.3.12
    • affected 6.2.3.13
    • affected 6.2.3.14
    • affected 6.2.3.15
    • affected 6.2.3.16
    • affected 6.2.3.17
    • affected 6.2.3.18
    • affected 6.6.0
    • affected 6.6.0.1
    • affected 6.6.1
    • affected 6.6.3
    • affected 6.6.4
    • affected 6.6.5
    • affected 6.6.5.1
    • affected 6.6.5.2
    • affected 6.6.7
    • affected 6.6.7.1
    • affected 6.6.7.2
    • affected 6.4.0
    • affected 6.4.0.1
    • affected 6.4.0.3
    • affected 6.4.0.2
    • affected 6.4.0.4
    • affected 6.4.0.5
    • affected 6.4.0.6
    • affected 6.4.0.7
    • affected 6.4.0.8
    • affected 6.4.0.9
    • and 33 more

What to do

Exploitation: The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .