Which versions of Yandex Browser are affected by CVE-2023-26226?

Organizations using Yandex Browser for Desktop face moderate risk from CVE-2023-26226, a use-after-free vulnerability rated CVSS 7.4.

How to fix or mitigate CVE-2023-26226?

Within 7 days: Identify all affected systems running Yandex Browser for Desktop and apply vendor patches promptly. If patching is delayed, consider network segmentation to limit exposure.

Yandex Browser CVE-2023-26226

Q: What is the CVSS score of CVE-2023-26226?

CVE-2023-26226 has a CVSS 4.0 base score of 7.4 (High). CVSS vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:L/VA:H/SC:H/SI:H/SA:H/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 exploitation probability: 0.3%.

HIGH

Use After Free (CWE-416)

2025-05-30 browser-security@yandex-team.ru

Use After Free Memory Corruption Buffer Overflow Denial Of Service Yandex Browser

7.4

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

7.4 HIGH

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:L/VA:H/SC:H/SI:H/SA:H/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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:L/VA:H/SC:H/SI:H/SA:H/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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:44 vuln.today

CVE Published

May 30, 2025 - 18:15 nvd

HIGH 7.4

DescriptionCVE.org

A use after free memory corruption issue exists in Yandex Browser for Desktop prior to version 24.4.0.682

AnalysisAI

A use after free memory corruption issue exists in Yandex Browser for Desktop prior to version 24.4.0.682. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Use After Free (CWE-416), which allows attackers to access freed memory to execute arbitrary code or crash the application. A use after free memory corruption issue exists in Yandex Browser for Desktop prior to version 24.4.0.682 Affected products include: Yandex Yandex Browser. Version information: version 24.4.0.682.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use smart pointers or garbage-collected languages. Set pointers to NULL after freeing. Enable memory sanitizers.