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CVE-2021-27506

MEDIUM

5.5

CVSS Score

Published: March 19, 2021 at 02:28 PM UTC

Updated: June 17, 2026 at 03:44 AM UTC

4 products affected across 3 vendorsClamAVStormshield Network SecurityNetasq

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Severity

MEDIUM5.5

Exploit prediction

EPSS 1%

Description

The ClamAV Engine (version 0.103.1 and below) component embedded in Storsmshield Network Security (SNS) is subject to DoS in case of parsing of malformed png files. This affect Netasq versions 9.1.0 to 9.1.11 and SNS versions 1.0.0 to 4.2.0. This issue is fixed in SNS 3.7.19, 3.11.7 and 4.2.1.

Affected

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

ClamAV · Clamav

95%

v ≤ 0.103.1

Netasq · Netasq Project

95%

9.1.0 ≤ v ≤ 9.1.11

Stormshield Network Security · Stormshield

95%

1.0 ≤ v ≤ 4.2.0

Network Security · Stormshield

90%

1.0 ≤ v ≤ 4.2.0

Remediation

No guide yet

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

Patch and advisory references

References (2)

x_refsource_CONFIRMBroken LinkVendor Advisory

Source: [email protected]

https://advisories.stormshield.eu/2021-003/

x_refsource_MISCVendor Advisory

Source: [email protected]

https://blog.clamav.net/2021/02/clamav-01031-patch-release.html

CVSS

5.5MEDIUM[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-noinfo

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