CVE-2020-9342

Name: CVE-2020-9342
Creator: NVD / NIST
Published: 2020-02-22T23:15:11.097+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.60%

Last modified Jun 17, 2026

CVE-2020-9342 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The F-Secure AV parsing engine before 2020-02-05 allows virus-detection bypass via crafted Compression Method data in a GZIP archive. This affects versions before 17.0.605.474 (on Linux) of Cloud Protection For Salesforce, Email and Server Security, and Internet GateKeeper.. EPSS estimates a 1.60% chance of exploitation in the next 30 days.

Description

The F-Secure AV parsing engine before 2020-02-05 allows virus-detection bypass via crafted Compression Method data in a GZIP archive. This affects versions before 17.0.605.474 (on Linux) of Cloud Protection For Salesforce, Email and Server Security, and Internet GateKeeper.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS Probability

1.60%

72.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-436

Affected Software

Vendor	Product	Versions
F-Secure	Cloud Protection For Salesforce	< 17.0.605.474
F-Secure	Email And Server Security	< 17.0.605.474
F-Secure	Internet Gatekeeper	< 17.0.605.474

References

http://packetstormsecurity.com/files/156506/F-SECURE-Generic-Malformed-Container-Bypass.htmlThird Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2020/Feb/33Mailing List, Third Party Advisory
https://blog.zoller.lu/p/tzo-16-2020-f-secure-generic-malformed.htmlThird Party Advisory
https://seclists.org/bugtraq/2020/Feb/33Mailing List, Third Party Advisory
http://packetstormsecurity.com/files/156506/F-SECURE-Generic-Malformed-Container-Bypass.htmlThird Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2020/Feb/33Mailing List, Third Party Advisory
https://blog.zoller.lu/p/tzo-16-2020-f-secure-generic-malformed.htmlThird Party Advisory
https://seclists.org/bugtraq/2020/Feb/33Mailing List, Third Party Advisory

Timeline

Published: Feb 22, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9342?

How severe is CVE-2020-9342?

CVE-2020-9342 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.60% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9342?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-9342?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST