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CVE-2021-25262

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

MEDIUM
5.4
CVSS Score
Published: May 21, 2025 at 07:07 AM UTC
Updated: June 17, 2026 at 03:41 AM UTC
1 product affected across 1 vendorYandex Browser· also runs on 1 platform

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Yandex Browser· Yandex
95%
v < 21.3.021.3.0
Affected range stops below 21.3.0, so it looks safe — our inference, not a vendor statement
google-android (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://yandex.com/bugbounty/i/hall-of-fame-browser/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-116

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