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Vulnerability record · CVE-2022-41140 · published 26 January 2023

CVE-2022-41140: Dlink dir-882-us firmware stack-based buffer overflow vulnerability

Dlink · Dir 882 Us Firmware

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of multiple D-Link routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the lighttpd service, which listens on TCP port 80 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13796.

8.8 CVSS 3.1 High EPSS 1.1% · top 36.2% CWE-121 · Stack-based buffer overflowCWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of multiple D-Link routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the lighttpd service, which listens on TCP port 80 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13796.

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

Affected products

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

References

LinkTags
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10291 PatchVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-1290/ Third Party AdvisoryVDB Entry
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10291 PatchVendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-1290/ Third Party AdvisoryVDB Entry

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Related vulnerabilities

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

9.8CVE-2023-27720Dlink dir-878 firmware out-of-bounds write vulnerabilityD-Link DIR878 1.30B08 was discovered to contain a stack overflow in the sub_48d630 function. This vulnerability allows attackers to cause a Denial of…EPSS 1.4%9.8CVE-2023-24798Dlink dir-878 firmware out-of-bounds write vulnerabilityD-Link DIR878 DIR_878_FW120B05 was discovered to contain a stack overflow in the sub_475FB0 function. This vulnerability allows attackers to cause a …EPSS 1.1%9.8CVE-2023-24799Dlink dir-878 firmware out-of-bounds write vulnerabilityD-Link DIR878 DIR_878_FW120B05 was discovered to contain a stack overflow in the sub_48AF78 function. This vulnerability allows attackers to cause a …EPSS 1.1%9.8CVE-2023-24800Dlink dir-878 firmware out-of-bounds write vulnerabilityD-Link DIR878 DIR_878_FW120B05 was discovered to contain a stack overflow in the sub_495220 function. This vulnerability allows attackers to cause a …EPSS 1.3%9.8CVE-2023-24762Dlink dir-867 firmware os command injection vulnerabilityOS Command injection vulnerability in D-Link DIR-867 DIR_867_FW1.30B07 allows attackers to execute arbitrary commands via a crafted LocalIPAddress pa…EPSS 2.5%9.8CVE-2022-44202Dlink dir-878 firmware out-of-bounds write vulnerabilityD-Link DIR878 1.02B04 and 1.02B05 are vulnerable to Buffer Overflow.EPSS 1.2%9.8CVE-2022-44801Dlink dir-878 firmware vulnerabilityD-Link DIR-878 1.02B05 is vulnerable to Incorrect Access Control.EPSS 1.2%9.8CVE-2022-43184Dlink dir-878 firmware os command injection vulnerabilityD-Link DIR878 1.30B08 Hotfix_04 was discovered to contain a command injection vulnerability via the component /bin/proc.cgi.EPSS 1.8%

Source: NIST National Vulnerability Database (record CVE-2022-41140), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.