High severity · published Apr 9, 2026
CVE-2026-5983
D-Link DIR-605L POST Request formSetDDNS buffer overflow
8.8
CVSS
0.7%
EPSS
No
On KEV
Description
A vulnerability was determined in D-Link DIR-605L 2.13B01. This issue affects the function formSetDDNS of the file /goform/formSetDDNS of the component POST Request Handler. Executing a manipulation of the argument curTime can lead to buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
DIR-605L · D-Link
2.13B01 · source: vendor
DF
Dir-605l Firmware · Dlink
2.13b01 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-5983
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5983
Exploit
https://lavender-bicycle-a5a.notion.site/D-Link-DIR-605L-formSetDDNS-33153a41781f802f9997f48dc9cf6304?source=copy_link
Third Party Advisory
https://vuldb.com/submit/791856
Third Party Advisory
https://vuldb.com/vuln/356537
Permissions Required
https://vuldb.com/vuln/356537/cti
Product
https://www.dlink.com/
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