Uncontrolled search path in Cisco AMP for Endpoints
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-427.
Summary
A vulnerability in the dynamic link library (DLL) loading mechanism in Cisco Advanced Malware Protection (AMP) for Endpoints Windows Connector, ClamAV for Windows, and Immunet could allow an authenticated, local attacker to perform a DLL hijacking attack on an affected Windows system. To exploit this vulnerability, the attacker would need valid credentials on the system. The vulnerability is due to insufficient validation of directory search paths at run time. An attacker could exploit this vulnerability by placing a malicious DLL file on an affected system. A successful exploit could allow the attacker to execute arbitrary code with SYSTEM privileges.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco AMP for Endpoints | all versions | — | No fix listed | CNA |
- Cisco AMP for Endpoints VendorCisco Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-1386
- 2026-10-03 Alias added: GHSA-crcr-fw92-82g6
References
More Cisco Advanced Malware Protection For Endpoints vulnerabilities
- TI-2021-01007 Cisco Advanced Malware Protection for Endpoints and Immunet for Windows DLL Hijacking Vulnerability CVSS 3.1HIGH 7.8
- TI-2018-00199 Improper input validation in Cisco AMP for Endpoints CVSS 3.1MEDIUM 5.8
- TI-2019-01552 Cisco Advanced Malware Protection for Endpoints Windows Command Injection Vulnerability CVSS 3.0MEDIUM 6.7
- TI-2018-11012 Cisco Advanced Malware Protection for Endpoints on Windows DLL Preloading Vulnerability CVSS 3.0MEDIUM 6.7
- TI-2017-09088 Improper input validation in Cisco Immunet Antimalware Installer CVSS 3.0MEDIUM 6.7
- TI-2018-00356 Resource management flaw in Cisco AMP for Endpoints Mac Connector unknown CVSS 3.0MEDIUM 5.9
Sources
- CVE-2021-1386 · CVE Program
- CVE-2021-1386 · NVD
- FIRST EPSS
- GHSA-crcr-fw92-82g6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences