Description
A vulnerability affecting the F-Secure Antivirus engine was discovered when the engine tries to unpack a zip archive (LZW decompression method), and this can crash the scanning engine. The vulnerability can be exploited remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.
Published: 2021-10-06
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

FIX No User action is required. The required fix has been published through the automatic update channel with Capricorn update 2021-09-29_03

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-20286 A vulnerability affecting the F-Secure Antivirus engine was discovered when the engine tries to unpack a zip archive (LZW decompression method), and this can crash the scanning engine. The vulnerability can be exploited remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.
History

Tue, 24 Feb 2026 17:30:00 +0000

Type Values Removed Values Added
Title Denial-of-Service (DoS) Vulnerability Denial-of-Service (DoS) Vulnerability

Subscriptions

F-secure Atlant Cloud Protection Internet Gatekeeper Linux Security
cve-icon MITRE

Status: PUBLISHED

Assigner: F-SecureUS

Published:

Updated: 2024-08-03T23:50:43.182Z

Reserved: 2021-05-27T00:00:00.000Z

Link: CVE-2021-33602

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-10-06T10:15:07.823

Modified: 2024-11-21T06:09:10.913

Link: CVE-2021-33602

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses