CVE-2025-25891

Router crash via oversized route parameters

Published Feb 18, 2025 · Updated Feb 19, 2025

Stack-based buffer overflow in D-Link DSL-3782 1.01 allows remote authenticated users to crash the router through crafted route parameters. The public report identifies destination, netmask, and gateway inputs but does not disclose the handler or exact unchecked copy operation. An authenticated attacker must reach the configuration interface from an adjacent network; successful exploitation interrupts router availability.

CVSS severity5.7
Medium
EPSS probability0.32%
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 DSL-3782 1.01 allows remote authenticated users to crash the router through crafted route parameters. The public report identifies destination, netmask, and gateway inputs but does not disclose the handler or exact unchecked copy operation. An authenticated attacker must reach the configuration interface from an adjacent network; successful exploitation interrupts router availability.

The record

CVE
CVE-2025-25891
Published
Feb 18, 2025
Updated
Feb 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, T1499.004
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 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

5.7CISA-ADPCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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 exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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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