What is CVE-2021-25262?

CVE-2021-25262 is a medium-severity vulnerability in Google Android, classified under Improper Encoding or Escaping of Output. CVSS score: 5.4/10. Published 2025-05-21.

How severe is CVE-2021-25262?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2021-25262 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Google Android

CVE-2021-25262

Yandex Browser for Android prior to version 21.3.0 allows remote attackers to perform IDN homograph attack.

EPSS: 0.004 (29.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

CWE-116 — Improper Encoding or Escaping of Output

Public proof-of-concept exploits

KirtiRamchandani/KirtiRamchandani

References

browser-security@yandex-team.ru (Vendor Advisory)

Frequently asked questions

What is CVE-2021-25262?: CVE-2021-25262 is a medium-severity vulnerability in Google Android, classified under Improper Encoding or Escaping of Output. CVSS score: 5.4/10. Published 2025-05-21.
How severe is CVE-2021-25262?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-25262 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.