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CVE-2026-20348NVD
Vulnerability Summary
A vulnerability in the XAR file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of memory corruption on an affected device.
This vulnerability is due to improper boundary checks for content in XAR files during scanning. An attacker could exploit this vulnerability by submitting a crafted file that contains XAR content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.
This vulnerability is due to improper boundary checks for content in XAR files during scanning. An attacker could exploit this vulnerability by submitting a crafted file that contains XAR content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.
CVSS v3.1 Base Metrics — Score 7.5 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
Affected & Patched Versions
- Cisco Secure Endpoint < 1.27.4
- Cisco Secure Endpoint < 1.29.2
- Cisco Secure Endpoint < 7.5.24.21780
- Cisco Secure Endpoint >= 8.0.0 and < 8.6.3
- Cisco Secure Endpoint 1.27.4
- Cisco Secure Endpoint 1.29.2
- Cisco Secure Endpoint 7.5.24.21780
- Cisco Secure Endpoint 8.6.3