CVE & CISA-KEV Catalog

CVE-2021-1386

HIGH
7.0
CVSS v3
NVD

Description

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.

How to fix

Remediation Available
advanced malware protection for endpointsNVD
Affected:< 7.3.15Fixed in:7.3.15CVE-2021-1386derived from NVD
clamavNVD
Affected:< 0.103.2Fixed in:0.103.2CVE-2021-1386derived from NVD
immunetNVD
Affected:< 7.4.0Fixed in:7.4.0CVE-2021-1386derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.28%probability of exploitation in 30 days
20thpercentile

Low risk: more likely to be exploited than 20% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-427 vulnerabilities, ordered by exploit likelihood. View all

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CVE-2020-27955Critical9.883%--
CVE-2017-6517Critical9.846%--
CVE-2020-3153Medium6.528%KEV + RansomFix
CVE-2024-48990High7.820%-Fix
CVE-2019-9491High7.813%--
CVE-2020-3433High7.810%KEV + RansomFix
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Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.