ByteOS Network

NVD Vulnerability Details :

CVE-2020-36938

Awaiting Analysis

Source-disclosure@vulncheck.com

Published At-27 Jan, 2026 | 16:16

Updated At-29 Jan, 2026 | 16:31

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	4.0	7.0	HIGH	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
Primary	3.1	8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Type: Secondary

Version: 4.0

Base score: 7.0

Base severity: HIGH

Vector:

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

Type: Primary

Version: 3.1

Base score: 8.8

Base severity: HIGH

Vector:

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

Weaknesses

CWE ID	Type	Source
CWE-732	Primary	disclosure@vulncheck.com

CWE ID: CWE-732

Type: Primary

Source: disclosure@vulncheck.com

References

Hyperlink	Source	Resource
https://sourceforge.net/projects/winavr/	disclosure@vulncheck.com	N/A
https://www.exploit-db.com/exploits/49379	disclosure@vulncheck.com	N/A
https://www.vulncheck.com/advisories/winavr-version-insecure-folder-permissions	disclosure@vulncheck.com	N/A