CVE-2023-24351Public exploitNetwork attack vector

Unauthenticated code execution via unbounded FILECODE copy

Published Feb 10, 2023 · Updated Mar 24, 2025

Stack-based buffer overflow in D-Link DIR-605L 2.13B01 allows remote attackers to execute code via a crafted FILECODE login value. The boa HTTP server passes an arbitrarily long FILECODE value from /goform/formLogin to getAuthCode, where sprintf copies it into stack memory without a length bound. The login handler is reachable without authentication; exploitation can run arbitrary code or crash the router.

CVSS severity9.8
Critical
EPSS probability1.24%
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 DIR-605L 2.13B01 allows remote attackers to execute code via a crafted FILECODE login value. The boa HTTP server passes an arbitrarily long FILECODE value from /goform/formLogin to getAuthCode, where sprintf copies it into stack memory without a length bound. The login handler is reachable without authentication; exploitation can run arbitrary code or crash the router.

The record

CVE
CVE-2023-24351
Published
Feb 10, 2023
Updated
Mar 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 10, 2023CVE 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?

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

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NVDCVSS: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-787Out-of-bounds Write
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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