CVE-2020-36938

HIGH EPSS 9.7%

Published Jan 27, 20265mo ago · Modified Jun 17, 20262w ago

7.0 CVSS 4.0

High

Published Jan 27, 2026 5mo ago

Last Modified Jun 17, 2026 2w ago

Description

WinAVR version 20100110 contains an insecure permissions vulnerability that allows authenticated users to modify system files and executables. Attackers can leverage the overly permissive access controls to potentially modify critical DLLs and executable files in the WinAVR installation directory.

CVSS Details

Base Score

7.0

Exploitability

—

Impact

—

Vector string

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

Attack Complexity Low

Privileges Required Low

User Interaction A

Scope X

Threat Intelligence

EPSS Exploit Probability

9.7% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-732

References 3

sourceforge.net https://sourceforge.net/projects/winavr/
exploit-db.com https://www.exploit-db.com/exploits/49379
vulncheck.com https://www.vulncheck.com/advisories/winavr-version-insecure-folder-permissions

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.