CVE-2025-25744Network attack vector

Unauthenticated memory corruption via crafted DDNS password

Published Feb 12, 2025 · Updated Mar 5, 2025

Stack-based buffer overflow in D-Link DIR-853 A1 1.20B07 allows remote attackers to corrupt memory via a crafted DDNS password. The disclosure locates the overflow in SetDynamicDNSSettings and identifies Password as the input, but does not publish the failing copy operation or missing bounds check. Network access without authentication or user interaction is sufficient; public sources establish neither command execution nor a reliable crash.

CVSS severity9.8
Critical
EPSS probability0.59%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in D-Link DIR-853 A1 1.20B07 allows remote attackers to corrupt memory via a crafted DDNS password. The disclosure locates the overflow in SetDynamicDNSSettings and identifies Password as the input, but does not publish the failing copy operation or missing bounds check. Network access without authentication or user interaction is sufficient; public sources establish neither command execution nor a reliable crash.

The record

CVE
CVE-2025-25744
Published
Feb 12, 2025
Updated
Mar 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 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 vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-787Out-of-bounds Write

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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