01 Record

CVE-2024-20339

Cisco Firepower Threat Defense Software for Firepower 2100 Series TLS Denial of Service Vulnerability

HighPUBLISHEDCNA: cisco

CNA base score8.6 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

View raw JSON

02 Description

Cisco Firepower Threat Defense Software for Firepower 2100 Series TLS Denial of Service Vulnerability

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.71% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 50.9% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-08-11.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-10-23 17:09Z1 YR AGO

Last updated

2024-10-24 16:16Z1 YR AGO

Reserved

2023-11-08

Assigning CNA

cisco

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

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

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

35dc1b2710d4370f66a013d7a1e6f5b767e541f5efdc4e721a1f398146283ab6

05 Affected products

VendorProductVersionsPlatforms

CiscoCisco Firepower Threat Defense Software6.2.3, 6.2.3.9, 6.2.3.1, 6.2.3.2, 6.2.3.10, 6.4.0, 6.4.0.3, 6.4.0.4, 6.2.3.15, 6.2.3.6, 6.2.3.7, 6.2.3.12, 6.2.3.3, 6.2.3.11, 6.4.0.6, 6.2.3.13, 6.2.3.8, 6.2.3.4, 6.4.0.1, 6.2.3.5, 6.4.0.5, 6.2.3.14, 6.4.0.2, 6.4.0.8, 6.4.0.7, 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, 7.2.0.1, 7.0.4, 7.2.1, 7.0.5, 6.4.0.16, 7.3.0, 7.2.2, 6.6.7.1, 7.2.3, 7.3.1, 7.1.0.3, 7.2.4, 7.0.6, 7.2.5, 7.2.4.1, 7.3.1.1, 6.4.0.17, 7.0.6.1, 7.2.5.1, 6.6.7.2, 7.2.5.2, 7.3.1.2—

ciscofirepower_threat_defense_software6.2.3 to 6.2.3.18, 6.4.0 to 6.4.0.17, 6.6.0 to 6.6.7.2, 6.7.0 to 6.7.0.3, 7.0.0 to 7.0.6.1, 7.1.0 to 7.1.0.3, 7.2.0 to 7.2.5.2, 7.3.0 to 7.3.1.2—

06 References

sec.cloudapps.cisco.comcisco-sa-ftd-tls-dos-QXYE5Ufyhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tls-dos-QXYE5Ufy
sec.cloudapps.cisco.comhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO
sec.cloudapps.cisco.comCisco Event Response: October 2024 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publicationhttps://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300

01 Record index

CVE-2024-20339

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2024-20339

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References