What is CVE-2021-40284?

CVE-2021-40284 is a medium-severity vulnerability in Dlink Dsl-3782, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2021-09-09.

How severe is CVE-2021-40284?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Buffer overflow in Dlink Dsl-3782

CVE-2021-40284

D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface "/cgi-bin/New_GUI/Igmp.asp". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter 'igmpsnoopEnable' via an HTTP request.

Vulnerability class: Buffer Overflow

EPSS: 0.026 (83.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Dlink Dsl-3782
Dlink Dsl-3782_firmware — versions eu_1.01, eu_1.03
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-40284?: CVE-2021-40284 is a medium-severity vulnerability in Dlink Dsl-3782, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.5/10. Published 2021-09-09.
How severe is CVE-2021-40284?: Medium severity. CVSS v3 base score is 6.5 out of 10.