VDB-309842 · CVE-2021-25254 · EUVD-2021-12165

Yandex Browser Lite prior 21.1.0 on Android ui layer

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.7	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Yandex Browser Lite on Android. Impacted is an unknown function. Such manipulation leads to ui layer. This vulnerability is uniquely identified as CVE-2021-25254. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Yandex Browser Lite on Android. It has been rated as problematic. Affected by this issue is an unknown functionality. 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. CVE summarizes:

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

The weakness was disclosed by Kirtikumar Anandrao Ramchandani. The advisory is available at yandex.com. This vulnerability is handled as CVE-2021-25254 since 01/15/2021. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading to version 21.1.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2021-12165). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Android App Software

Vendor

Yandex

Name

Browser Lite

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: 5.3
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Browser Lite 21.1.0

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-2021-25254 (🔍)
GCVE (CVE): GCVE-0-2021-25254
GCVE (VulDB): GCVE-100-309842
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20130704

Entryinfo

Created: 05/21/2025 09:15
Updated: 06/10/2025 18:25
Changes: 05/21/2025 09:15 (68), 05/22/2025 13:04 (1), 06/10/2025 18:25 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.