CVE-2021-26621

CVSS V2 High 7.5 CVSS V3 Critical 9.8

Description

An Buffer Overflow vulnerability leading to remote code execution was discovered in MEX01. Remote attackers can use this vulnerability by using the property that the target program copies parameter values to memory through the strcpy() function.

Overview

CVE ID
CVE-2021-26621

Assigner
vuln@krcert.or.kr

Vulnerability Status
Analyzed

Published Version
2022-03-25T19:15:08

Last Modified Date
2022-03-31T13:42:14

Weakness Enumerations

CWE	URL
CWE-120	http://cwe.mitre.org/data/definitions/120.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
		AND
cpe:2.3:o:netu:mex01_firmware::::::::	1	OR	1.9.18
cpe:2.3:h:netu:mex01:-:::::::*	0	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
7.5

Severity
HIGH

Exploitability Score
10

Impact Score
6.4

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
9.8

Base Severity
CRITICAL

Exploitability Score
3.9

Impact Score
5.9

References

Reference URL	Reference Tags
https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66579	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-26621
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26621

History

Created	Old Value	New Value	Data Type	Notes
2022-04-04 00:39:50				Added to TrackCVE
2022-12-06 13:17:18	2022-03-25T19:15Z	2022-03-25T19:15:08	CVE Published Date	updated
2022-12-06 13:17:18		2022-03-31T13:42:14	CVE Modified Date	updated
2022-12-06 13:17:18		Analyzed	Vulnerability Status	updated