5.5

CVE-2021-33602: f-secure f-secure endpoint protection products on windows and mac. f-secure linux security (32-bit) f-secure linux security 64 f-secure atlant & f-secure cloud protection for salesforce

CVSS: 5.5v3.1MediumModified
Published 06-10-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-33602 is a medium (CVSS 5.5) vulnerability in f-secure f-secure endpoint protection products on windows and mac. f-secure linux security (32-bit) f-secure linux security 64 f-secure atlant & f-secure cloud protection for salesforce. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.60%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-10-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

0.00 pp

From 0.59% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.60%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

F-secure1 product

1 vendor · 1 product

References

1 links