🛡️ CVE-2025-51281 — di-8100-firmware

🟠 CVSS 7.0 — High ⚠️ Exploit Public CWE-120 NVD
7.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

D-Link DI-8100 16.07.26A1 is vulnerable to Buffer Overflow via the en, val and id parameters in the qj_asp function. This vulnerability allows authenticated attackers to cause a Denial of Service (DoS) by sending crafted GET requests with overly long values for these parameters.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity low, availability low.

Weakness class

CVE-2025-51281 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.

Affected software

CVE-2025-51281 is recorded against 1 package.

  • di-8100-firmware

Timeline and source

Published on 25 August 2025 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

github.com
www.dlink.com

Details

Severity HIGH
CVSS Score 7.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
CWE CWE-120
Public Exploit ⚠️ Yes
Source NVD
Published 2025-08-25
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
di-8100-firmware — —

Similar Threats

Exploit Protection

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CVE-2025-51281 carries CVSS 7.0 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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