CVE-2025-2621Public exploitNetwork attack vector

Unauthenticated code execution via uid stack overflow

Published Mar 22, 2025 · Updated Mar 24, 2025

Stack-based buffer overflow in D-Link DAP-1620 1.03 allows remote attackers to execute code or crash the device via a crafted uid. Public material identifies check_dws_cookie in /storage and the uid argument, but does not disclose the exact unsafe copy operation. No authentication or user interaction is required; successful exploitation can execute code or interrupt the end-of-life appliance.

CVSS severity9.3
Critical
EPSS probability2.09%
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 DAP-1620 1.03 allows remote attackers to execute code or crash the device via a crafted uid. Public material identifies check_dws_cookie in /storage and the uid argument, but does not disclose the exact unsafe copy operation. No authentication or user interaction is required; successful exploitation can execute code or interrupt the end-of-life appliance.

The record

CVE
CVE-2025-2621
Published
Mar 22, 2025
Updated
Mar 24, 2025
Vendor
D-Link
Product
DAP-1620
Classifications
CWE-119, CWE-787, CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 24, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.03

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

D-Link · DAP-1620version=1.03

Published CVSS scores

9.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
10.0VulDBAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8VulDBCVSS: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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787Out-of-bounds Write
CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

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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