Critical severity · published Jul 20, 2025
CVE-2025-7911
D-Link DI-8100 jhttpd upnp_ctrl.asp sprintf stack-based overflow
9.8
CVSS
2%
EPSS
No
On KEV
Description
A vulnerability classified as critical was found in D-Link DI-8100 1.0. This vulnerability affects the function sprintf of the file /upnp_ctrl.asp of the component jhttpd. The manipulation of the argument remove_ext_proto/remove_ext_port leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public 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)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
DI-8100 · D-Link
1.0 · source: vendor
DF
Di-8100 Firmware · Dlink
1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-7911
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-7911
Broken Link
https://github.com/buobo/bo-s-CVE/blob/main/DI-8100/upnp_ctrl_asp.md
Permissions Required
https://vuldb.com/?ctiid.317026
Third Party Advisory
https://vuldb.com/?id.317026
Third Party Advisory
https://vuldb.com/?submit.618640
Third Party Advisory
https://vuldb.com/?submit.618641
Product
https://www.dlink.com/
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