CVE-2021-25263

7.8 highEPSS 0.4%

High (7.8) in yandex yandex browser. EPSS 0.4% chance of exploitation in the next 30 days.

Local privilege vulnerability in Yandex Browser for Windows prior to 21.9.0.390 allows a local, low privileged, attacker to execute arbitary code with the SYSTEM privileges through manipulating files in directory with insecure permissions during Yandex Browser update process.

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 35% of CVEs (scores of 2026-10-31)
CWE: CWE-732
Published: 2021-08-17
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

yandex:yandex_browser

References

https://yandex.com/bugbounty/i/hall-of-fame-browser/
https://yandex.com/bugbounty/i/hall-of-fame-browser/

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