CVE-2025-51384Public exploit

Web-interface crash via unbounded remot_ip formatting

Published Jul 31, 2025 · Updated Jul 31, 2025

Stack-based buffer overflow in D-Link DI-8200 16.07.26A1 allows remote authenticated users to crash its web interface. The ipsec_net_asp function formats the remot_ip value into a fixed-size stack buffer through an unbounded %s conversion. Adjacent-network access and low-privilege credentials are required; an oversized value makes the management website unavailable.

CVSS severity3.5
Low
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in D-Link DI-8200 16.07.26A1 allows remote authenticated users to crash its web interface. The ipsec_net_asp function formats the remot_ip value into a fixed-size stack buffer through an unbounded %s conversion. Adjacent-network access and low-privilege credentials are required; an oversized value makes the management website unavailable.

The record

CVE
CVE-2025-51384
Published
Jul 31, 2025
Updated
Jul 31, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1499.004
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 31, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.5CISA-ADPCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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