What is CVE-2024-1786?

CVE-2024-1786 is a high-severity vulnerability in D-Link Dir-600m C1, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2024-02-23.

How severe is CVE-2024-1786?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2024-1786 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in D-Link Dir-600m C1

CVE-2024-1786

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as critical, has been found in D-Link DIR-600M C1 3.08. Affected by this issue is some unknown functionality of the component Telnet Service. The manipulation of the argument username leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-254576. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.

Vulnerability class: Buffer Overflow

Published 2024-02-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.027 (85.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

D-Link Dir-600m C1 — versions 3.08
Dlink Dir-600m — versions c1
Dlink Dir-600m Firmware — versions 3.08

Weakness classification (CWE)

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

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
vuldb.com/ (signature, permissions-required, VDB Entry, Third Party Advisory)
gist.github.com/dmknght/269d90e17713bbd34e48c50f5c5284a2 (Exploit, Third Party Advisory, exploit)

Frequently asked questions

What is CVE-2024-1786?: CVE-2024-1786 is a high-severity vulnerability in D-Link Dir-600m C1, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2024-02-23.
How severe is CVE-2024-1786?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2024-1786 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.