Critical severity · published Mar 16, 2026
CVE-2026-4181
A security flaw has been discovered in D-Link DIR-816 1.10CNB05
9.8
CVSS
1.2%
EPSS
No
On KEV
Description
A security flaw has been discovered in D-Link DIR-816 1.10CNB05. This affects an unknown function of the file /goform/form2RepeaterStep2.cgi of the component goahead. The manipulation of the argument key1/key2/key3/key4/pskValue results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
Dir-816 Firmware · Dlink
1.10cnb05 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4181
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4181
Exploit
https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_85/85.md
Permissions Required
https://vuldb.com/?ctiid.351085
Third Party Advisory
https://vuldb.com/?id.351085
Third Party Advisory
https://vuldb.com/?submit.769829
Product
https://www.dlink.com/
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A weakness has been identified in D-Link DIR-816 1.10CNB05
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CVE-2026-4180
A vulnerability was identified in D-Link DIR-816 1.10CNB05
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