High severity · published Apr 9, 2026
CVE-2026-5981
D-Link DIR-605L POST Request formAdvFirewall buffer overflow
8.8
CVSS
0.7%
EPSS
No
On KEV
Description
A vulnerability has been found in D-Link DIR-605L 2.13B01. This affects the function formAdvFirewall of the file /goform/formAdvFirewall of the component POST Request Handler. Such manipulation of the argument curTime leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. 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 54% 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-2026-5981
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-5981
Exploit
https://lavender-bicycle-a5a.notion.site/D-Link-DIR-605L-formAdvFirewall-33153a41781f80678733f4b12282f3fa?source=copy_link
Third Party Advisory
https://vuldb.com/submit/791854
Third Party Advisory
https://vuldb.com/vuln/356535
Permissions Required
https://vuldb.com/vuln/356535/cti
Product
https://www.dlink.com/
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