Denial-of-service (DoS) in F-Secure Products
Priority LOW 30CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Linux Security whereby the FSAVD component used in certain F-Secure products can crash while scanning larger packages/fuzzed files. The exploit can be triggered remotely by an attacker. A successful attack will result in Denial-of-Service (DoS) of the Anti-Virus engine.
Why it matters now
EPSS 0.0068 52nd 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 |
|---|---|---|---|---|---|
| F-Secure | F-Secure Products | All Version | — | No fix listed | CNA |
- F-Secure Products VendorF-Secure Affected All Version Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:f-secure:cloud_protection_for_salesforce:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | F-Secure |
| cpe:2.3:a:f-secure:elements_for_microsoft_365:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | F-Secure |
| cpe:2.3:a:f-secure:endpoint_protection:*:*:*:*:*:*:*:* | all versions | Vulnerable | F-Secure |
| cpe:2.3:a:f-secure:linux_security:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | F-Secure |
- cpe:2.3:a:f-secure:cloud_protection_for_salesforce:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·F-Secure
- cpe:2.3:a:f-secure:elements_for_microsoft_365:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·F-Secure
- cpe:2.3:a:f-secure:endpoint_protection:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·F-Secure
- cpe:2.3:a:f-secure:linux_security:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·F-Secure
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-33572
- 2026-10-03 Alias added: GHSA-396f-8jhp-q236
References
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-2021-33572 · CVE Program
- CVE-2021-33572 · NVD
- FIRST EPSS
- GHSA-396f-8jhp-q236 · GitHub Advisory Database · CC BY 4.0
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