CVE-2021-33594
CVE-2021-33594 is a low-severity vulnerability in F-secure Safe with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Low (CVSS 3.x base score 3.5)
- CVSS v2: 3.5
- EPSS exploit prediction: 1% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: F-secure Safe
- Published:
- Last modified:
Description
An address bar spoofing vulnerability was discovered in Safe Browser for Android. When user clicks on a specially crafted a malicious URL, it appears like a legitimate one on the address bar, while the content comes from other domain and presented in a window, covering the original content. A remote attacker can leverage this to perform address bar spoofing attack.
Frequently asked questions
- What is CVE-2021-33594?
- An address bar spoofing vulnerability was discovered in Safe Browser for Android. When user clicks on a specially crafted a malicious URL, it appears like a legitimate one on the address bar, while the content comes from other domain and presented in a window, covering the original content. A remote attacker can leverage this to perform address bar spoofing attack.
- How severe is CVE-2021-33594?
- CVE-2021-33594 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2021-33594 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-33594?
- CVE-2021-33594 affects F-secure Safe. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-33594?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-33594 published?
- CVE-2021-33594 was published on 2021-08-11 and last updated on 2026-06-17.
References
- https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame
- https://www.f-secure.com/en/business/support-and-downloads/security-advisories
- https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33594
Affected products (1)
- cpe:2.3:a:f-secure:safe:*:*:*:*:*:android:*:*
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