CVE-2021-25254

MEDIUMNVD 5.35.3—Trending — 3 sources updated this week

5.3

Yandex Browser Lite for Android before 21.1.0 allows remote attackers to spoof the address bar.

CVSS v3: 5.3
EG Score: 5.3(medium)
EPSS: 48.7%
KEV: Not listed

Published

May 21, 2025

Last Modified

June 10, 2025

References (1)

browser-security@yandex-teamhttps://yandex.com/bugbounty/i/hall-of-fame-browser/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-116Improper Encoding or Escaping of Output

Data Freshness Timeline

(refreshed 11× in last 7d / 11× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-30 04:52 UTCEG score recompute
2026-05-30 04:52 UTCGHSA enrichment
2026-05-29 13:42 UTCepss_batch

Frequently asked(5)

What is CVE-2021-25254?

CVE-2021-25254 is a medium vulnerability published on May 21, 2025. Yandex Browser Lite for Android before 21.1.0 allows remote attackers to spoof the address bar.

When was CVE-2021-25254 disclosed?

CVE-2021-25254 was first published in the National Vulnerability Database on May 21, 2025, with the most recent update on June 10, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-25254 actively exploited?

CVE-2021-25254 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-25254?

CVE-2021-25254 has a CVSS v3 base score of 5.3 (NVD).

How do I remediate CVE-2021-25254?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-25254, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-25254

Explore →

Is Your Infrastructure Affected by CVE-2021-25254?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2021-25254

📅 Published

🔄 Last Modified

🔗 References (1)