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Vulnerability record · CVE-2023-36089 · published 31 July 2023

CVE-2023-36089: Dlink dir-645 firmware incorrect authorization vulnerability

Dlink · Dir 645 Firmware

Authentication Bypass vulnerability in D-Link DIR-645 firmware version 1.03 allows remote attackers to gain escalated privileges via function phpcgi_main in cgibin. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

9.8 CVSS 3.1 Critical EPSS 1.5% · top 27.4% CWE-863 · Incorrect authorization
9.8CVSS 3.1 base score
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Authentication Bypass vulnerability in D-Link DIR-645 firmware version 1.03 allows remote attackers to gain escalated privileges via function phpcgi_main in cgibin. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.dlink.com/en/security-bulletin/ Vendor Advisory
https://www.dlink.com/en/support Not Applicable
https://www.dlink.com/en/security-bulletin/ Vendor Advisory
https://www.dlink.com/en/support Not Applicable

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2015-2051D-Link DIR-645 Router HNAP Command InjectionThe D-Link DIR-645 wired/wireless router (Rev. Ax, firmware 1.04b12 and earlier) fails to sanitize input to the HNAP interface, allowing command inje…KEVEPSS 97%analysed10.0CVE-2018-25115Dlink dir-110 firmware os command injection vulnerabilityMultiple D-Link DIR-series routers, including DIR-110, DIR-412, DIR-600, DIR-610, DIR-615, DIR-645, and DIR-815 firmware version 1.03, contain a vuln…EPSS 10%10.0CVE-2015-2052Dlink dir-645 firmware memory buffer overflow vulnerabilityStack-based buffer overflow in the DIR-645 Wired/Wireless Router Rev. Ax with firmware 1.04b12 and earlier allows remote attackers to execute arbitra…EPSS 5.2%9.8CVE-2022-46475Dlink dir-645 firmware out-of-bounds write vulnerabilityD-Link DIR 645A1 1.06B01_Beta01 was discovered to contain a stack overflow via the service= variable in the genacgi_main function.EPSS 9.5%9.8CVE-2022-32092Dlink dir-645 firmware os command injection vulnerabilityD-Link DIR-645 v1.03 was discovered to contain a command injection vulnerability via the QUERY_STRING parameter at __ajax_explorer.sgi.EPSS 5.8%9.8CVE-2021-43722Dlink dir-645 firmware out-of-bounds write vulnerabilityD-Link DIR-645 1.03 A1 is vulnerable to Buffer Overflow. The hnap_main function in the cgibin handler uses sprintf to format the soapaction header on…EPSS 3.2%9.8CVE-2013-7471Dlink dir-300 firmware command injection vulnerabilityAn issue was discovered in soap.cgi?service=WANIPConn1 on D-Link DIR-845 before v1.02b03, DIR-600 before v2.17b01, DIR-645 before v1.04b11, DIR-300 r…EPSS 24%6.1CVE-2020-25786Dlink dir-803 firmware cross-site scripting vulnerabilitywebinc/js/info.php on D-Link DIR-816L 2.06.B09_BETA and DIR-803 1.04.B02 devices allows XSS via the HTTP Referer header. NOTE: This vulnerability onl…EPSS 0.99%

Source: NIST National Vulnerability Database (record CVE-2023-36089), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.