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TI-2021-20261 Aliases CVE-2021-44749GHSA-q4ff-m563-fvv4

Universal Cross-Site Scripting Vulnerability in F-Secure SAFE Browser Protection for Android

Priority MEDIUM 43CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

A vulnerability affecting F-Secure SAFE browser protection was discovered improper URL handling can be triggered to cause universal cross-site scripting through browsing protection in a SAFE web browser. User interaction is required prior to exploitation. A successful exploitation may lead to arbitrary code execution.

Why it matters now

EPSS 0.00817 57th percentileScored 2026-11-07
Fix Fixed F-Secure SAFE Browser for Android Version 18.5 (F-Secure): 18.5x

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
F-SecureF-Secure SAFE Browser for Android Version 18.5before 18.5x18.5xPatch availableCNA
  • F-Secure SAFE Browser for Android Version 18.5 VendorF-Secure Affected before 18.5x Fixed in 18.5x Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:f-secure:safe:18.5:*:*:*:*:android:*:*18.5VulnerableF-Secure
  • cpe:2.3:a:f-secure:safe:18.5:*:*:*:*:android:*:* Versions 18.5 Vulnerable ·F-Secure

Remediation

  • Fix · CNA F-Secure SAFE Browser for Android Version 18.5 (F-Secure) Fixed in 18.5x

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    F-Secure SAFE Browser for Android Version 18.5 18.5x

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2021-20260 Universal Cross-Site Scripting Vulnerability in F-Secure SAFE Browser for AndroidPriority LOW 28
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-44749
  2. 2026-10-03 Alias added: GHSA-q4ff-m563-fvv4

References

Advisory 1

  • TI-2020-11780 An issue was discovered in F-Secure SAFE 17.7 on macOS. CVSS 3.1HIGH 8.1
  • TI-2020-11779 An issue was discovered in F-Secure SAFE 17.7 on macOS. CVSS 3.1HIGH 8.1
  • TI-2022-11493 Address Bar Spoofing Vulnerability in F-Secure SAFE Browser for Android CVSS 3.1HIGH 8.8
  • TI-2019-08714 In the F-Secure installer in F-Secure SAFE for Windows before 17.6, F-Secure Internet… CVSS 3.0HIGH 7.8
  • TI-2022-17862 A vulnerability affecting F-Secure SAFE browser for Android and iOS was discovered. CVSS 3.1MEDIUM 6.5
  • TI-2021-20260 Universal Cross-Site Scripting Vulnerability in F-Secure SAFE Browser for Android CVSS 3.1MEDIUM 6.1
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences