CVE-2023-44422

Root code execution via unvalidated EmailFrom value

Published May 3, 2024 · Updated Aug 2, 2024

OS command injection in D-Link DIR-X3260 firmware 1.02B02 and earlier allows remote authenticated users to execute code as root via HNAP. The SetSysEmailSettings handler in prog.cgi passes an unvalidated EmailFrom string from an HNAP request to a system call. The lighttpd interface is reachable on LAN-side TCP ports 80 and 443; authentication is required, but a separate flaw can bypass it.

CVSS severity8.0
High
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in D-Link DIR-X3260 firmware 1.02B02 and earlier allows remote authenticated users to execute code as root via HNAP. The SetSysEmailSettings handler in prog.cgi passes an unvalidated EmailFrom string from an HNAP request to a system call. The lighttpd interface is reachable on LAN-side TCP ports 80 and 443; authentication is required, but a separate flaw can bypass it.

The record

CVE
CVE-2023-44422
Published
May 3, 2024
Updated
Aug 2, 2024
Vendor
D-Link
Product
DIR-X3260 Firmware
Classifications
CWE-78, T1210
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. May 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=1.02B02

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

D-Link · DIR-X3260 Firmwareversion=1.02B02
D-Link · DIR-X3260version=1.02B02

Published CVSS scores

8.0NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.0Zero Day InitiativeCVSS:3.0/AV:A/AC:L/PR:L/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)
Vectoradjacent
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1210Exploitation of Remote Services

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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