CVE-2023-44427

CVE-2023-44427 is a high-severity vulnerability in Dlink Dir-x3260 Firmware with a CVSS 3.x base score of 8.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Description

D-Link DIR-X3260 SetSysEmailSettings SMTPServerAddress 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. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within prog.cgi, which handles HNAP requests made to the lighttpd webserver listening on TCP ports 80 and 443. 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-21222.

Frequently asked questions

What is CVE-2023-44427?
D-Link DIR-X3260 SetSysEmailSettings SMTPServerAddress 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. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within prog.cgi, which handles HNAP requests made to the lighttpd webserver listening on TCP ports 80 and 443. 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-21222.
How severe is CVE-2023-44427?
CVE-2023-44427 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-44427 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-44427?
CVE-2023-44427 affects Dlink Dir-x3260 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-44427?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-44427 have an EU (EUVD) identifier?
Yes. CVE-2023-44427 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-48767.
When was CVE-2023-44427 published?
CVE-2023-44427 was published on 2024-05-03 and last updated on 2026-06-17.

References

Affected products (1)

More vulnerabilities in Dlink Dir-x3260 Firmware

All CVEs affecting Dlink Dir-x3260 Firmware →

Other CWE-78 (OS Command Injection) vulnerabilities

Browse all CWE-78 (OS Command Injection) vulnerabilities →