CVE-2026-7851

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.

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CVSS v3.1 Score

7.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0011

Probability of exploitation

0.29%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-121 CWE-121

Affected Products

Vendor	Product	Versions
dlink	di-8100_firmware	All
dlink	di-8100	All

References

Exploits

https://github.com/draw-ctf/report/blob/main/DI-8100/yyxz_dlink_asp_overflow.md

Other References

https://vuldb.com/submit/807798 https://vuldb.com/vuln/361128 https://vuldb.com/vuln/361128/cti https://www.dlink.com/

Frequently Asked Questions

What is CVE-2026-7851? +

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. It has a CVSS v3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-7851? +

CVE-2026-7851 has a CVSS v3.1 score of 7.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0011, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-7851? +

CVE-2026-7851 affects products from dlink, specifically: di-8100, di-8100_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-7851? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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