The F-Secure AV parsing engine before 2020-02-05 allows virus-detection bypass via…
Priority LOW 28CWE-436Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.01641 76th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:f-secure:cloud_protection_for_salesforce:*:*:*:*:*:linux_kernel:*:* | before 17.0.605.474 | Vulnerable | F-Secure |
| cpe:2.3:a:f-secure:email_and_server_security:*:*:*:*:*:linux_kernel:*:* | before 17.0.605.474 | Vulnerable | F-Secure |
| cpe:2.3:a:f-secure:internet_gatekeeper:*:*:*:*:*:linux_kernel:*:* | before 17.0.605.474 | Vulnerable | F-Secure |
- cpe:2.3:a:f-secure:cloud_protection_for_salesforce:*:*:*:*:*:linux_kernel:*:* Versions before 17.0.605.474 Vulnerable ·F-Secure
- cpe:2.3:a:f-secure:email_and_server_security:*:*:*:*:*:linux_kernel:*:* Versions before 17.0.605.474 Vulnerable ·F-Secure
- cpe:2.3:a:f-secure:internet_gatekeeper:*:*:*:*:*:linux_kernel:*:* Versions before 17.0.605.474 Vulnerable ·F-Secure
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-9342
- 2026-10-03 Alias added: GHSA-3g4g-934h-pjq7
References
Advisory 4
- https://blog.zoller.lu/p/tzo-16-2020-f-secure-generic-malformed.html
- 20200224 [TZO-16-2020] - F-SECURE Generic Malformed Container bypass (GZIP)
- http://packetstormsecurity.com/files/156506/F-SECURE-Generic-Malformed-Container-Bypass.html
- 20200227 [TZO-16-2020] - F-SECURE Generic Malformed Container bypass (GZIP)
More F-Secure Cloud Protection For Salesforce vulnerabilities
- TI-2022-11504 Denial-of-service (DoS) in F-Secure All F-Secure and WithSecure Endpoint Protection… CVSS 3.1HIGH 7.5
- TI-2022-11503 Denial-of-service (DoS) in F-Secure All F-Secure and WithSecure Endpoint Protection… CVSS 3.1HIGH 7.5
- TI-2022-11502 Denial-of-service (DoS) in F-Secure All F-Secure and WithSecure Endpoint Protection… CVSS 3.1HIGH 7.5
- TI-2022-11501 Denial-of-service (DoS) in F-Secure All F-Secure and WithSecure Endpoint Protection… CVSS 3.1HIGH 7.5
- TI-2022-11500 Denial-of-service (DoS) in F-Secure All F-Secure and WithSecure Endpoint Protection… CVSS 3.1HIGH 7.5
- TI-2022-11499 Denial-of-service (DoS) in F-Secure All F-Secure and WithSecure Endpoint Protection… CVSS 3.1HIGH 7.5
Sources
- CVE-2020-9342 · CVE Program
- CVE-2020-9342 · NVD
- FIRST EPSS
- GHSA-3g4g-934h-pjq7 · GitHub Advisory Database · CC BY 4.0
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