PT-2025-42156 · Microsoft · Bitdefender For Linux

Published 2025-10-14 · Updated 2025-10-14 · CVE-2025-59497

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Microsoft Defender for Linux (affected versions not specified)

Description A time-of-check time-of-use (TOCTOU) race condition exists in Microsoft Defender for Linux. This condition allows a locally authorized attacker to cause a denial of service. A TOCTOU race condition occurs when a system checks a condition and then, before acting on that condition, the state changes, leading to unexpected behavior.

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

Time Of Check To Time Of Use

Weakness Enumeration

CWE-367

Related Identifiers

BDU:2025-13090

CVE-2025-59497

Affected Products

Bitdefender For Linux

References · 5

• https://osv.dev/vulnerability/CVE-2025-59497 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59497 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-13090 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-59497 · Security Note
• https://twitter.com/CVEnew/status/1978171144688783579 · Twitter Post