CVE-2021-34201

HIGH

D-Link DIR-2640-US 1.01B04 - Out-of-bounds Write

Title source: llm
STIX 2.1

Description

D-Link DIR-2640-US 1.01B04 is vulnerable to Buffer Overflow. There are multiple out-of-bounds vulnerabilities in some processes of D-Link AC2600(DIR-2640). Local ordinary users can overwrite the global variables in the .bss section, causing the process crashes or changes.

References (4)

Core 4
Core References
Product x_refsource_misc
http://d-link.com
Vendor Advisory x_refsource_misc
https://www.dlink.com/en/security-bulletin/
Product, URL Repurposed x_refsource_misc
http://dir-2640-us.com
Exploit, Third Party Advisory x_refsource_misc
https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34201

Scores

CVSS v3 7.1
EPSS 0.0006
EPSS Percentile 17.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Details

CWE
CWE-787
Status published
Products (1)
dlink/dir-2640-us_firmware 1.01b04
Published Jun 16, 2021
Tracked Since Feb 18, 2026