The vulnerability in the TLS processing function of Cisco Adaptive Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) for the Firepower 3100 Series and Firepower 4200 Series devices allows a attacker to induce a service failure.
🗓️ 27 Aug 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 8 Views
| Reporter | Title | Published | Views | Family All 13 |
|---|---|---|---|---|
 | CVE-2025-20127 | 15 Aug 202511:00 | – | circl |
 | Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software for Firepower 3100 and 4200 Series TLS 1.3 Cipher Denial of Service Vulnerability | 14 Aug 202516:00 | – | cisco |
 | Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 安全漏洞 | 14 Aug 202500:00 | – | cnnvd |
 | CVE-2025-20127 | 14 Aug 202516:28 | – | cve |
 | CVE-2025-20127 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software for Firepower 3100 and 4200 Series TLS Cipher Denial of Service Vulnerability | 14 Aug 202516:28 | – | cvelist |
 | EUVD-2025-24854 | 3 Oct 202520:07 | – | euvd |
 | Vulnerabilities fixed in Cisco Secure Firewall Software | 15 Aug 202508:52 | – | ncsc |
 | CVE-2025-20127 | 14 Aug 202517:15 | – | nvd |
 | CVE-2025-20127 | 14 Aug 202517:15 | – | osv |
 | PT-2025-33311 | 14 Aug 202500:00 | – | ptsecurity |
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27 Aug 2025 00:00Current
6.1Medium risk
Vulners AI Score6.1
CVSS 26.8
CVSS 37.7
EPSS0.00619