PT-2021-20398 · D Link · D-Link Dir-2640-Us

Published 2021-06-16 · Updated 2024-02-14 · CVE-2021-34201

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: D-Link DIR-2640-US version 1.01B04

Description: The issue is related to Buffer Overflow, with 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 to crash or change.

Recommendations: For D-Link DIR-2640-US version 1.01B04, consider restricting access to the affected processes until a patch is available. As a temporary workaround, disabling the vulnerable functionality may help minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-34201

Affected Products

D-Link Dir-2640-Us

References · 7

• 🔥 https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34201 · Exploit
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34201 · Security Note
• https://osv.dev/vulnerability/CVE-2021-34201 · Vendor Advisory
• https://t.me/cibsecurity/25505 · Telegram Post
• http://d-link.com · Note
• http://dir-2640-us.com · Note