XML external entity injection in Cisco Secure Endpoint
Priority LOW 34CWE-611Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-611 and the CVSS impact.
Summary
On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the DMG file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to access sensitive information on an affected device. This vulnerability is due to enabling XML entity substitution that may result in XML external entity injection. An attacker could exploit this vulnerability by submitting a crafted DMG file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to leak bytes from any file that may be read by the ClamAV scanning process.
Why it matters now
EPSS 0.07003 94th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Secure Endpoint | 6.0.9; 6.0.7; 6.1.5; 6.1.7; 6.1.9; 6.2.1; 6.2.5; 6.2.19; 6.2.9; 6.3.5; 6.3.1; 6.3.7; 6.3.3; 7.0.5; 7.1.1; 7.1.5; 1.12.1; 1.12.2; 1.12.5; 1.12.0; 1.12.6; 1.12.3; 1.12.7; 1.12.4; 1.13.0; 1.13.1; 1.13.2; 1.11.0; 1.10.2; 1.10.1; 1.10.0; 1.14.0; 1.6.0; 1.9.0; 1.9.1; 1.8.1; 1.8.0; 1.8.4; 1.7.0; 7.2.13; 7.2.7; 7.2.3; 7.2.11; 7.2.5; 7.3.3; 7.3.5 | — | No fix listed | CNA |
- Cisco Secure Endpoint VendorCisco Affected 6.0.9; 6.0.7; 6.1.5; 6.1.7; 6.1.9; 6.2.1; 6.2.5; 6.2.19; 6.2.9; 6.3.5; 6.3.1; 6.3.7; 6.3.3; 7.0.5; 7.1.1; 7.1.5; 1.12.1; 1.12.2; 1.12.5; 1.12.0; 1.12.6; 1.12.3; 1.12.7; 1.12.4; 1.13.0; 1.13.1; 1.13.2; 1.11.0; 1.10.2; 1.10.1; 1.10.0; 1.14.0; 1.6.0; 1.9.0; 1.9.1; 1.8.1; 1.8.0; 1.8.4; 1.7.0; 7.2.13; 7.2.7; 7.2.3; 7.2.11; 7.2.5; 7.3.3; 7.3.5 Fixed in — No fix listed CNA
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:linux:*:* | before 1.20.2 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:macos:*:* | before 1.21.1 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:windows:*:* | before 7.5.9; 8.0.1.21160 to before 8.1.5 | Vulnerable | Cisco |
| cpe:2.3:a:cisco:secure_endpoint_private_cloud:*:*:*:*:*:*:*:* | before 3.6.0 | Vulnerable | Cisco |
| cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:* | up to 0.103.7; 0.104.0 – 0.105.1 | Vulnerable | ClamAV |
| cpe:2.3:a:clamav:clamav:1.0.0:-:*:*:*:*:*:* | 1.0.0 | Vulnerable | ClamAV |
| cpe:2.3:a:clamav:clamav:1.0.0:rc:*:*:*:*:*:* | 1.0.0 rc | Vulnerable | ClamAV |
| cpe:2.3:a:clamav:clamav:1.0.0:rc2:*:*:*:*:*:* | 1.0.0 rc2 | Vulnerable | ClamAV |
| cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:* | 3.0.0 to before 3.7.35; 3.8.0 to before 3.11.23; 4.3.0 to before 4.3.17; 4.4.0 to before 4.6.4 | Vulnerable | Stormshield |
- cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:linux:*:* Versions before 1.20.2 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:macos:*:* Versions before 1.21.1 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_endpoint:*:*:*:*:*:windows:*:* Versions before 7.5.9; 8.0.1.21160 to before 8.1.5 Vulnerable ·Cisco
- cpe:2.3:a:cisco:secure_endpoint_private_cloud:*:*:*:*:*:*:*:* Versions before 3.6.0 Vulnerable ·Cisco
- cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:* Versions up to 0.103.7; 0.104.0 – 0.105.1 Vulnerable ·ClamAV
- cpe:2.3:a:clamav:clamav:1.0.0:-:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·ClamAV
- cpe:2.3:a:clamav:clamav:1.0.0:rc:*:*:*:*:*:* Versions 1.0.0 rc Vulnerable ·ClamAV
- cpe:2.3:a:clamav:clamav:1.0.0:rc2:*:*:*:*:*:* Versions 1.0.0 rc2 Vulnerable ·ClamAV
- cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:* Versions 3.0.0 to before 3.7.35; 3.8.0 to before 3.11.23; 4.3.0 to before 4.3.17; 4.4.0 to before 4.6.4 Vulnerable ·Stormshield
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2023-20052
- 2026-10-03 Alias added: GHSA-pcr4-7r58-755h
References
Advisory 1
More Cisco Secure Endpoint vulnerabilities
- TI-2023-06741 Buffer overflow in Cisco Secure Web Appliance CVSS 3.1CRITICAL 9.8
- TI-2024-13224 Out-of-bounds read in Cisco Secure Endpoint CVSS 3.1HIGH 7.5
- TI-2022-05329 ClamAV CHM File Parsing Denial of Service Vulnerability Affecting Cisco Products: April 2022 CVSS 3.1HIGH 8.6
- TI-2022-05344 ClamAV HTML Scanning Memory Leak Vulnerability Affecting Cisco Products: April 2022 CVSS 3.1HIGH 7.5
- TI-2022-05330 ClamAV TIFF File Parsing Denial of Service Vulnerability Affecting Cisco Products: April 2022 CVSS 3.1HIGH 7.5
- TI-2026-16532 ClamAV XAR File Format Processing Memory Corruption Vulnerability CVSS 3.1HIGH 7.5
Sources
- CVE-2023-20052 · CVE Program
- CVE-2023-20052 · NVD
- FIRST EPSS
- GHSA-pcr4-7r58-755h · GitHub Advisory Database · CC BY 4.0
- CVE-2023-20052 · Red Hat security data · CC BY 4.0
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