This vulnerability is due to improper memory handling when processing content in zip files during scanning. An attacker could exploit this vulnerability by submitting a crafted zip file for scanning. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate as a result of a memory double-free, resulting in a DoS condition on the affected software.
Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Cisco | Cisco Secure Endpoint | unknown |
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No vendor fix or workaround currently provided.
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Fri, 07 Aug 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Fri, 07 Aug 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A vulnerability in the zip archive parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper memory handling when processing content in zip files during scanning. An attacker could exploit this vulnerability by submitting a crafted zip file for scanning. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate as a result of a memory double-free, resulting in a DoS condition on the affected software. | |
| Title | ClamAV ZIP File Format Processing Memory Corruption Vulnerability | |
| Weaknesses | CWE-415 | |
| References |
| |
| Metrics |
cvssV3_1
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2026-08-07T18:12:13.836Z
Reserved: 2025-10-08T11:59:15.413Z
Link: CVE-2026-20338
Vulnrichment
Updated: 2026-08-07T18:12:10.347Z
NVD
No data.
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-08-07T18:00:04Z