Yandex Browser up to 21.1.0 on Android URL ui layer

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Yandex Browser on Android. This affects an unknown function of the component URL Handler. The manipulation leads to ui layer. This vulnerability is referenced as CVE-2021-25262. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Yandex Browser on Android. This issue affects an unknown code of the component URL Handler. The manipulation with an unknown input leads to a ui layer vulnerability. Using CWE to declare the problem leads to CWE-1021. The web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain, which can lead to user confusion about which interface the user is interacting with. Impacted is integrity. The summary by CVE is:

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

The weakness was published by Kirtikumar Anandrao Ramchandani. The advisory is shared at yandex.com. The identification of this vulnerability is CVE-2021-25262 since 01/15/2021. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

Upgrading to version 21.3.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2021-12173). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Ui layer
CWE: CWE-1021
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Browser 21.3.0

Timelineinfo

01/15/2021 🔍
05/21/2025 +1586 days 🔍
05/21/2025 +0 days 🔍
06/10/2025 +20 days 🔍

Sourcesinfo

Advisory: yandex.com
Researcher: Kirtikumar Anandrao Ramchandani
Status: Confirmed

CVE: CVE-2021-25262 (🔍)
GCVE (CVE): GCVE-0-2021-25262
GCVE (VulDB): GCVE-100-309845
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 05/21/2025 09:36
Updated: 06/10/2025 18:25
Changes: 05/21/2025 09:36 (70), 05/21/2025 15:46 (1), 06/10/2025 18:25 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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