CVE-2021-25254

Name: CVE-2021-25254
Creator: NVD / NIST
Published: 2025-05-21T07:15:59.357+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 0.46%

Last modified Jun 17, 2026

CVE-2021-25254 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. Yandex Browser Lite for Android before 21.1.0 allows remote attackers to spoof the address bar.. EPSS estimates a 0.46% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS 4.0

8.2/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.46%

36.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-116

Affected Software

Vendor	Product	Versions
Yandex	Yandex Browser	< 21.1.0

References

https://yandex.com/bugbounty/i/hall-of-fame-browser/Vendor Advisory

Timeline

Published: May 21, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2021-25254?

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

How severe is CVE-2021-25254?

CVE-2021-25254 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.46% probability of exploitation in the next 30 days.

How do I fix CVE-2021-25254?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-25254?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST