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CVE-2023-20052

MEDIUM
5.3
CVSS Score
Published: February 16, 2023 at 03:26 PM UTC
Updated: June 17, 2026 at 05:29 AM UTC
4 products affected across 3 vendorsClamAVNetwork SecuritySecure Endpoint

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Severity
MEDIUM5.3
Exploit prediction
EPSS 7%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Secure Endpoint· Cisco
95%
v < 1.20.2v < 1.21.1v < 7.5.98.0.1.21160 ≤ v < 8.1.51.10.01.10.11.10.21.11.01.12.01.12.11.12.21.12.31.12.41.12.51.12.61.12.71.13.01.13.11.13.21.14.01.6.01.7.01.8.01.8.11.8.41.9.01.9.16.0.76.0.96.1.56.1.76.1.96.2.16.2.196.2.56.2.96.3.16.3.36.3.56.3.77.0.57.1.17.1.57.2.117.2.137.2.37.2.57.2.77.3.37.3.5
Affected range stops below 1.20.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.21.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.5.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.1.5, so it looks safe — our inference, not a vendor statement
Secure Endpoint Private Cloud· Cisco
95%
v < 3.6.0
Affected range stops below 3.6.0, so it looks safe — our inference, not a vendor statement
ClamAV· Clamav
95%
v ≤ 0.103.70.104.0 ≤ v ≤ 0.105.11.0.01.0.0 rc1.0.0 rc2
Network Security· Stormshield
95%
3.0.0 ≤ v < 3.7.353.8.0 ≤ v < 3.11.234.3.0 ≤ v < 4.3.174.4.0 ≤ v < 4.6.4
Affected range stops below 3.11.23, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.7.35, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.3.17, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.6.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-xxe-TcSZduhN

CVSS

5.3MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-611CWE-776

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