CVE-2026-7855 Details
Description
A vulnerability was detected in D-Link DI-8100 16.07.26A1. Affected by this issue is the function tggl_asp of the file /tggl.asp of the component HTTP Request Handler. Performing a manipulation of the argument Name results in buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.
A stack-based buffer overflow vulnerability has been identified in the D-Link DI-8100 router, specifically in the web management interface function 'tggl_asp' within the 'tggl.asp' file. This vulnerability, present in firmware version 16.07.26A1, can be exploited remotely by sending an overly long 'name' parameter when the 'opt=add' action is performed. The use of unbounded 'sprintf' and 'strcat' operations on a fixed-size stack buffer creates the potential for a remote authenticated attacker to cause a denial-of-service condition by crashing the web management service, or possibly execute arbitrary code on the device, which is based on MIPS architecture.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 5, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/draw-ctf/report/blob/main/DI-8100/tggl_asp_overflow.md | [email protected] | ExploitThird Party Advisory |
| https://vuldb.com/submit/807841 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/361132 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/361132/cti | [email protected] | Permissions RequiredVDB Entry |
| https://www.dlink.com/ | [email protected] | Product |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | [email protected] |
| CWE-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| dlink di-8100 firmware | 16.07.26a1 |
CPE
Remediation
| |
| dlink di-8100 | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 6, 2026 | Initial Analysis | [email protected] |
| May 5, 2026 | New CVE Received | [email protected] |