Login Request a demo
High severity · published May 5, 2026
CVE-2026-7851
D-Link DI-8100 yyxz.asp sprintf stack-based overflow
7.2
CVSS
4.1%
EPSS
No
On KEV
Description
A vulnerability was identified in D-Link DI-8100 16.07.26A1. This affects the function sprintf of the file yyxz.asp. The manipulation of the argument ID leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.1% · higher than 91% 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-2026-7851
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7851
Exploit
https://github.com/draw-ctf/report/blob/main/DI-8100/yyxz_dlink_asp_overflow.md
Third Party Advisory
https://vuldb.com/submit/807798
Third Party Advisory
https://vuldb.com/vuln/361128
Permissions Required
https://vuldb.com/vuln/361128/cti
Product
https://www.dlink.com/
More from DI-8100
9.8
CVE-2026-7854
D-Link DI-8100 POST Parameter url_rule.asp url_rule_asp buffer overflow
9.8
CVE-2026-7853
D-Link DI-8100 HTTP auto_reboot.asp sprintf buffer overflow
9.8
CVE-2024-44401
D-Link DI-8100G 17.12.20A1 is vulnerable to Command Injection via sub47A60C function in the upgrade_filter.asp file
9.4
CVE-2026-7248
D-Link DI-8100 CGI Endpoint tgfile.htm tgfile_htm buffer overflow
7.2
CVE-2026-7857
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow