What is CVE-2023-35723?

CVE-2023-35723 is a high-severity vulnerability in D-Link Dir-X3260, classified under OS Command Injection. CVSS score: 8.8/10. Published 2024-05-03.

How severe is CVE-2023-35723?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in D-Link Dir-X3260

CVE-2023-35723

D-Link DIR-X3260 prog.cgi SOAPAction Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-X3260 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the SOAPAction request header provided to the prog.cgi endpoint. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-20983.

Vulnerability class: Command Injection (OS Command Injection)

Published 2024-05-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (72.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.zerodayinitiative.com/advisories/ZDI-23-892/ (x_research-advisory, Third Party Advisory)
supportannouncement.us.dlink.com/announcement/publication.aspx (vendor-advisory, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-35723?: CVE-2023-35723 is a high-severity vulnerability in D-Link Dir-X3260, classified under OS Command Injection. CVSS score: 8.8/10. Published 2024-05-03.
How severe is CVE-2023-35723?: High severity. CVSS v3 base score is 8.8 out of 10.