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CVE-2021-25255

Yandex Browser Lite for Android prior to version 21.1.0 allows remote attackers to cause a denial of service.

HIGH
7.5
CVSS Score
Published: May 21, 2025 at 07:04 AM UTC
Updated: June 17, 2026 at 03:41 AM UTC
1 product affected across 1 vendorYandex Browser

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Severity
HIGH7.5
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

Yandex Browser Lite for Android prior to version 21.1.0 allows remote attackers to cause a denial of service.

Affected

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

Yandex Browser· Yandex
95%
v < 21.1.021.1.0
Affected range stops below 21.1.0, so it looks safe — our inference, not a vendor statement

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

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20

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