Risk Letters

Exploited vulnerability

CVE-2023-20269

TLP:CLEAR

Cisco Adaptive Security Appliance and Firepower Threat Defense Unauthorized Access Vulnerability

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.

Facts

  • Vendor: Cisco
  • Product: Adaptive Security Appliance and Firepower Threat Defense
  • CVSS: 5
  • EPSS (probability of exploitation within 30 days): 26.6 %
  • On CISA's Known Exploited Vulnerabilities list since: 13 September 2023
  • First known exploitation: 13 September 2023
  • Used in ransomware campaigns (per CISA): Yes
  • CISA's deadline for US federal agencies: 4 October 2023
  • Weakness: CWE-288
  • First seen by Risk Letters: 13 September 2023

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD