CVE-2021-34201

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.

CVSS v3.1 NVD

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

CVSS v2.0 NVD

3.6 LOWAV:L/AC:L/Au:N/C:N/I:P/A:P

EPSS

0.54% chance of exploitation in the next 30 days, 44th percentile

Published

2021-06-16

Updated

2026-07-09

Proof-of-concept exploits (1)

• liyansong2018/CVE/tree/main/2021/CVE-2021-3420112★ · 2023-02-25

Security advisories

• https://www.dlink.com/en/security-bulletin

References

• CVE Record
• NVD entry

Related

• CVE-2021-29302
• CVE-2021-31658
• CVE-2021-31659
• CVE-2021-34202
• CVE-2021-34203
• CVE-2022-21711