CVE-2025-51281

HIGH
2025-08-25 [email protected]
7.0
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 19:08 vuln.today
PoC Detected
Oct 01, 2025 - 20:00 vuln.today
Public exploit code
CVE Published
Aug 25, 2025 - 15:15 nvd
HIGH 7.0

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.

Analysis

D-Link DI-8100 16.07.26A1 is vulnerable to Buffer Overflow via the en, val and id parameters in the qj_asp function. Rated high severity (CVSS 7.0), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Technical Context

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. 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. Affected products include: Dlink Di-8100 Firmware.

Affected Products

Dlink Di-8100 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

Priority Score

55
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +35
POC: +20

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CVE-2025-51281 vulnerability details – vuln.today

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