What’s Vulnerable › Vulnerabilities

CVE-2021-34201

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-16 · updated 2026-07-09
• Weakness: CWE-787

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.

Affected products

• Quagga Services on D-Link DIR-2640 Routers: 1.01b04

References

• https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34201
• https://www.dlink.com/en/security-bulletin/
• https://github.com/liyansong2018/CVE/tree/main/2021/CVE-2021-34201
• https://www.dlink.com/en/security-bulletin/

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