CVE-2021-33593
CVE-2021-33593 is a medium-severity vulnerability in Navercorp Whale with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-451.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (48th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-451
- Affected product: Navercorp Whale
- Published:
- Last modified:
Description
Whale browser for iOS before 1.14.0 has an inconsistent user interface issue that allows an attacker to obfuscate the address bar which may lead to address bar spoofing.
Frequently asked questions
- What is CVE-2021-33593?
- Whale browser for iOS before 1.14.0 has an inconsistent user interface issue that allows an attacker to obfuscate the address bar which may lead to address bar spoofing.
- How severe is CVE-2021-33593?
- CVE-2021-33593 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2021-33593 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-33593?
- CVE-2021-33593 affects Navercorp Whale. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-33593?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-33593 published?
- CVE-2021-33593 was published on 2021-11-02 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:navercorp:whale:*:*:*:*:*:iphone_os:*:*
More vulnerabilities in Navercorp Whale
- CVE-2025-62583 — Critical (CVSS 9.8): Whale Browser before 4.33.325.17 allows an attacker to escape the iframe sandbox in a dual-tab environment.
- CVE-2025-53599 — Critical (CVSS 9.8): Whale browser for iOS before 3.9.1.4206 allow an attacker to execute malicious scripts in the browser via a crafted…
- CVE-2022-24074 — Critical (CVSS 9.8): Whale Bridge, a default extension in Whale browser before 3.12.129.18, allowed to receive any SendMessage request from…
- CVE-2025-69234 — Critical (CVSS 9.1): Whale browser before 4.35.351.12 allows an attacker to escape the iframe sandbox in a sidebar environment.
- CVE-2018-9859 — High (CVSS 8.1): The path of Whale update service was unquoted in NAVER Whale before 1.0.40.7. This vulnerability can be used for…
- CVE-2018-12449 — High (CVSS 7.8): The Whale browser installer 0.4.3.0 and earlier versions allows DLL hijacking.
All CVEs affecting Navercorp Whale →
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