01 Record
CVE-2026-20250
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software for Firepower 3100 and 4200 Series DTLS 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
02 Description
Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software for Firepower 3100 and 4200 Series DTLS 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.
- EPSS probability
- 0.57% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 47.0% of scored records. A rank, not a probability.
- NVD base score
- 8.6 (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:C/C:N/I:N/A:H
- NVD analysis status
- Awaiting Analysis. NVD last modified this record on 2026-09-18.
- 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
- 2026-09-16 20:09Z1 MO AGO
- Last updated
- 2026-09-18 19:09Z1 MO AGO
- Reserved
- 2025-10-08
- 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-772Missing Release of Resource after Effective LifetimeBase
- Data version
- 5.2
- Document digest
- bca127ae89953e2c0bc7b775aacab28d20ba1619f87ae9d35453c51e1c746056
05 Affected products
VendorProductVersionsPlatforms
CiscoCisco Secure Firewall Adaptive Security Appliance (ASA) Software9.23.1, 9.22.1.1, 9.22.1.3, 9.22.1.6, 9.22.2, 9.23.1.3, 9.22.2.4, 9.23.1.7, 9.22.2.9, 9.23.1.13, 9.22.2.13, 9.23.1.19, 9.22.2.14, 9.24.1, 9.23.1.22, 9.22.2.20, 9.23.1.26—
CiscoCisco Secure Firewall Threat Defense (FTD) Software7.6.0, 7.7.0, 7.6.1, 7.6.2, 7.7.10, 7.7.11, 7.6.2.1, 7.7.10.1, 7.6.4, 10.0.0—
06 References
- sec.cloudapps.cisco.comcisco-sa-asaftd-dtls-dos-Kp57HkyOhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-dtls-dos-Kp57HkyO