Answer in brief
CVE-2026-20345 records a Unknown severity vulnerability in ClamAV GPT File Format Processing Memory Corruption Vulnerability. The current sources do not mark it as known exploited. The current feed maps Cisco/Cisco Secure Endpoint (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Cisco/Cisco Secure Endpoint (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Cisco/Cisco Secure Endpointgeneric | 1.12.3 || 1.8.0 || 1.11.1 || 1.12.4 || 1.10.0 || 1.12.0 || 1.8.1 || 1.10.1 || 1.10.2 || 1.12.2 || 1.6.0 || 1.9.0 || 1.7.0 || 1.12.1 || 1.12.6 || 1.8.4 || 1.11.0 || 1.9.1 || 1.12.5 || 2.0.2 || 1.1.0 || 1.14.0 || 2.4.0 || 1.15.2 || 1.16.0 || 1.21.0 || 1.22.2 || 1.24.5 || 1.19.0 | Not reported |
Published upstream
Aug 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 7, 2026
A vulnerability in the GPT 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 handling of an endian conversion operation, which may result in an out-of-bounds buffer write. An attacker could exploit this vulnerability by submitting a crafted GPT file 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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-20345 records a Unknown severity vulnerability in ClamAV GPT File Format Processing Memory Corruption Vulnerability. The current sources do not mark it as known exploited. The current feed maps Cisco/Cisco Secure Endpoint (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Cisco/Cisco Secure Endpoint (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Cisco/Cisco Secure Endpointgeneric | 1.12.3 || 1.8.0 || 1.11.1 || 1.12.4 || 1.10.0 || 1.12.0 || 1.8.1 || 1.10.1 || 1.10.2 || 1.12.2 || 1.6.0 || 1.9.0 || 1.7.0 || 1.12.1 || 1.12.6 || 1.8.4 || 1.11.0 || 1.9.1 || 1.12.5 || 2.0.2 || 1.1.0 || 1.14.0 || 2.4.0 || 1.15.2 || 1.16.0 || 1.21.0 || 1.22.2 || 1.24.5 || 1.19.0 | Not reported |
Published upstream
Aug 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 7, 2026
A vulnerability in the GPT 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 handling of an endian conversion operation, which may result in an out-of-bounds buffer write. An attacker could exploit this vulnerability by submitting a crafted GPT file 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.
Quoted source text, attributed separately from HOL analysis.