How severe is CVE-2023-35723?

CVE-2023-35723 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-35723 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-35723?

CVE-2023-35723 affects Dlink Dir-x3260 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-35723?

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-2023-35723 have an EU (EUVD) identifier?

Yes. CVE-2023-35723 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-39722.

When was CVE-2023-35723 published?

CVE-2023-35723 was published on 2024-05-03 and last updated on 2026-06-17.

CVE-2023-35723

CVE-2023-35723 is a high-severity vulnerability in Dlink Dir-x3260 Firmware with a CVSS 3.x base score of 8.8. 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

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-39722
Weakness: CWE-78
Affected product: Dlink Dir-x3260 Firmware
Published: 2024-05-03
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2023-35723?: CVE-2023-35723 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-35723 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-35723?: CVE-2023-35723 affects Dlink Dir-x3260 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-35723?: 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-2023-35723 have an EU (EUVD) identifier?: Yes. CVE-2023-35723 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-39722.
When was CVE-2023-35723 published?: CVE-2023-35723 was published on 2024-05-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-x3260_firmware:*:*:*:*:*:*:*:*

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