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Critical severity · published May 5, 2026
CVE-2026-7854
D-Link DI-8100 POST Parameter url_rule.asp url_rule_asp buffer overflow
9.8
CVSS
5.9%
EPSS
No
On KEV
Description
A security vulnerability has been detected in D-Link DI-8100 16.07.26A1. Affected by this vulnerability is the function url_rule_asp of the file /url_rule.asp of the component POST Parameter Handler. Such manipulation leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
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)5.9% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
DI-8100 · D-Link
16.07.26A1 · source: vendor
DF
Di-8100 Firmware · Dlink
16.07.26a1 · source: NVD
Affected product
DI
DI-8100
D-Link
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7854
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7854
Exploit
https://github.com/draw-ctf/report/blob/main/DI-8100/url_rule_asp_overflow.md
Third Party Advisory
https://vuldb.com/submit/807838
Third Party Advisory
https://vuldb.com/vuln/361131
Permissions Required
https://vuldb.com/vuln/361131/cti
Product
https://www.dlink.com/
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