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CVE-2026-20217NVD
Vulnerability Summary
A vulnerability in the PESpin file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other expanded impacts, resulting from memory corruption on an affected device.
This vulnerability is due to improper boundary checks for content in PESpin files during scanning, which may result in an out-of-bounds buffer write. An attacker could exploit this vulnerability by submitting a crafted file that contains PESpin 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 PESpin files during scanning, which may result in an out-of-bounds buffer write. An attacker could exploit this vulnerability by submitting a crafted file that contains PESpin 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 < 1.27.2
- Cisco Secure Endpoint < 1.29.0
- Cisco Secure Endpoint < 8.6.2
- Clamav Clamav < 1.4.5
- Clamav Clamav >= 1.5.0 and < 1.5.3
- Cisco Secure Endpoint 1.27.2
- Cisco Secure Endpoint 1.29.0
- Cisco Secure Endpoint 8.6.2
- Clamav Clamav 1.4.5
- Clamav Clamav 1.5.3