CVE-2023-32143

Root code execution via truncated webupg allocation

Published May 3, 2024 · Updated Feb 5, 2025

Numeric truncation in D-Link DAP-1360 6.14B01 EU HOTFIX allows network-adjacent attackers to execute arbitrary code as root. The UPGCGI_CheckAuth path for /cgi-bin/webupg insufficiently validates user-supplied data, causing an integer overflow before allocating a buffer. Authentication is not required, but the management endpoint must be reachable from the attacker's adjacent network.

CVSS severity8.8
High
EPSS probability1.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Numeric truncation in D-Link DAP-1360 6.14B01 EU HOTFIX allows network-adjacent attackers to execute arbitrary code as root. The UPGCGI_CheckAuth path for /cgi-bin/webupg insufficiently validates user-supplied data, causing an integer overflow before allocating a buffer. Authentication is not required, but the management endpoint must be reachable from the attacker's adjacent network.

The record

CVE
CVE-2023-32143
Published
May 3, 2024
Updated
Feb 5, 2025
Vendor
D-Link
Product
DAP-1360
Classifications
CWE-197, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 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?

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

  1. Affected versionversion=0 <=v6.14b01
  2. Affected versionversion=6.14B01 EU HOTFIX

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

D-Link · DAP-1360version=0 <=v6.14b01; version=6.14B01 EU HOTFIX

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8Zero Day InitiativeCVSS:3.0/AV:A/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-197Numeric Truncation Error
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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