PT-2026-1380 · Unknown · Keyinstall

Published 2026-01-06 · Updated 2026-01-29 · CVE-2025-20795

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions KeyInstall (affected versions not specified)

Description An out-of-bounds write issue exists in KeyInstall due to a missing bounds check. Successful exploitation of this issue could allow a malicious actor with System privileges to escalate their privileges locally. User interaction is not required for exploitation.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

ASB-A-457250114

CVE-2025-20795

M-ALPS10276761

Affected Products

Keyinstall

References · 5

• https://osv.dev/vulnerability/CVE-2025-20795 · Vendor Advisory
• https://corp.mediatek.com/product-security-bulletin/January-2026 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-20795 · Security Note
• https://twitter.com/CVEnew/status/2008391029830152524 · Twitter Post
• https://reddit.com/r/GalaxyS21/comments/1qqh2tt/s21_firmware_security_update_downloaded_in_usa · Reddit Post