CVE-2023-20269

Known Exploited Vulnerability Entry External Catalog

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Entry Details

CVE-2023-20269

Confirmed

Yes

2023-09-13 00:00 UTC

Timestamps

2023-09-13

2023-09-13

Scope

KEV entry: Cisco Adaptive Security Appliance and Firepower Threat Defense Unauthorized Access Vulnerability | Affected: Cisco / Adaptive Security Appliance and Firepower Threat Defense | Description: Cisco Adaptive Security Appliance and Firepower Threat Defense contain an unauthorized access vulnerability that could allow an unauthenticated, remote attacker to conduct a brute force attack in an attempt to identify valid username and password combinations or establish a clientless SSL VPN session with an unauthorized user. | Required action: Apply mitigations per vendor instructions for group-lock and vpn-simultaneous-logins or discontinue use of the product for unsupported devices. | Due date: 2023-10-04 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ravpn-auth-8LyfCkeC; https://nvd.nist.gov/vuln/detail/CVE-2023-20269

References
  • {'id': 'CVE-2023-20269', 'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2023-20269'}

eebff792-e646-4d39-a26c-52a1f308c0e9

405284c2-e461-4670-8979-7fd2c9755a60

2026-02-02 12:26 UTC

2026-02-02 12:26 UTC

Evidence (1)
Type Source Signal Confidence Details GCVE Metadata
vendor_report cisa-kev successful_exploitation 0.80
View details 
{
  "cwes": [
    "CWE-288"
  ],
  "date_added": "2023-09-13",
  "due_date": "2023-10-04",
  "feed": "CISA Known Exploited Vulnerabilities Catalog",
  "knownRansomwareCampaignUse": "Known",
  "product": "Adaptive Security Appliance and Firepower Threat Defense",
  "vendorProject": "Cisco",
  "vulnerabilityName": "Cisco Adaptive Security Appliance and Firepower Threat Defense Unauthorized Access Vulnerability"
}
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