CVE-2020-9276

HIGH

D-Link DSL-2640B B2 EU_4.01B - Stack-based Buffer Overflow in do_cgi Function

Title source: llm
STIX 2.1

Description

An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. The function do_cgi(), which processes cgi requests supplied to the device's web servers, is vulnerable to a remotely exploitable stack-based buffer overflow. Unauthenticated exploitation is possible by combining this vulnerability with CVE-2020-9277.

References (3)

Core 3
Core References
Exploit, Third Party Advisory x_refsource_misc
https://raelize.com/posts/d-link-dsl-2640b-security-advisories/
Vendor Advisory x_refsource_misc
https://www.dlink.com/en/security-bulletin

Scores

CVSS v3 8.8
EPSS 0.0084
EPSS Percentile 74.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (1)
dlink/dsl-2640b_firmware eu_4.01b
Published Apr 20, 2020
Tracked Since Feb 18, 2026