PT-2026-4920 · Winavr · Winavr

Mohammed Alshehri · Published 2026-01-27 · Updated 2026-01-27 · CVE-2020-36938

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions WinAVR version 20100110

Description Insecure permissions allow authenticated users to modify system files and executables. Attackers can leverage overly permissive access controls to modify critical DLLs and executable files within the installation directory.

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

Exploit

Incorrect Permission

Weakness Enumeration

CWE-732

Related Identifiers

CVE-2020-36938

Affected Products

Winavr

References · 4

• 🔥 https://exploit-db.com/exploits/49379 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-36938 · Security Note
• https://vulncheck.com/advisories/winavr-version-insecure-folder-permissions · Note
• https://sourceforge.net/projects/winavr · Note