Vulnerability in Cisco Anyconnect Secure Mobility Client
CVE-2021-1366
A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack on an affected device if the VPN Posture…
EPSS: 0.006 (71.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Cisco Anyconnect Secure Mobility Client — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 20210217 Cisco AnyConnect Secure Mobility Client for Windows with VPN Posture (HostScan) Module DLL Hijacking Vulnerability (vendor-advisory, x_refsource_CISCO)
Frequently asked questions
- What is CVE-2021-1366?
- CVE-2021-1366 is a high-severity vulnerability in Cisco Anyconnect Secure Mobility Client, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.8/10. Published 2021-02-17.
- How severe is CVE-2021-1366?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-1366 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.