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Vulnerability record · CVE-2023-20084 · published 22 November 2023

CVE-2023-20084: Cisco secure endpoint vulnerability

Cisco · Secure Endpoint

A vulnerability in the endpoint software of Cisco Secure Endpoint for Windows could allow an authenticated, local attacker to evade endpoint protection within a limited time window. This vulnerability is due to a timing issue that occurs between various software components. An attacker could exploit this vulnerability by persuading a user to put a malicious file into a specific folder and then persuading the user to execute the file within a limited time window. A successful exploit could allow the attacker to cause the endpoint software to fail to quarantine the malicious file or kill its process. Note: This vulnerability only applies to deployments that have the Windows Folder Redirection feature enabled.

4.4 CVSS 3.1 Medium EPSS 0.17% · top 94.1% CWE-437 · CWE-437
4.4CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability in the endpoint software of Cisco Secure Endpoint for Windows could allow an authenticated, local attacker to evade endpoint protection within a limited time window. This vulnerability is due to a timing issue that occurs between various software components. An attacker could exploit this vulnerability by persuading a user to put a malicious file into a specific folder and then persuading the user to execute the file within a limited time window. A successful exploit could allow the attacker to cause the endpoint software to fail to quarantine the malicious file or kill its process. Note: This vulnerability only applies to deployments that have the Windows Folder Redirection feature enabled.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-secure-endpoint-dos-RzOgFKnd Issue TrackingVendor Advisory
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-secure-endpoint-dos-RzOgFKnd Issue TrackingVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-20032Cisco secure endpoint classic buffer overflow vulnerabilityOn Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the HFS+ partition file parser of ClamA…EPSS 29%7.5CVE-2026-20348Cisco secure endpoint classic buffer overflow vulnerabilityA vulnerability in the XAR file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other ex…EPSS 0.46%7.5CVE-2026-20217Cisco secure endpoint classic buffer overflow vulnerabilityA vulnerability in the PESpin file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly othe…EPSS 0.57%7.5CVE-2026-20243Cisco secure endpoint classic buffer overflow vulnerabilityA vulnerability in the ALZ file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other e…EPSS 0.57%7.5CVE-2026-20244Cisco secure endpoint classic buffer overflow vulnerabilityA vulnerability in the DMG file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other e…EPSS 0.57%7.5CVE-2026-20213Cisco secure endpoint classic buffer overflow vulnerabilityA vulnerability in the PE file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other ex…EPSS 0.57%7.5CVE-2026-20214Cisco secure endpoint classic buffer overflow vulnerabilityA vulnerability in the FSG file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other e…EPSS 0.57%7.5CVE-2026-20215Cisco secure endpoint classic buffer overflow vulnerabilityA vulnerability in the 7z file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other ex…EPSS 0.57%

Source: NIST National Vulnerability Database (record CVE-2023-20084), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.