CVE-2023-44424

Root code execution via EmailTo command injection

Published May 3, 2024 · Updated Aug 2, 2024

Command injection in D-Link DIR-X3260 1.02B02 allows network-adjacent attackers to execute arbitrary code as root through HNAP requests. The SetSysEmailSettings handler in prog.cgi passes an unvalidated EmailTo string into a system call received by lighttpd on TCP ports 80 and 443. Reaching the operation requires authentication, but the router's existing authentication mechanism is separately bypassable, leaving adjacent networks exposed to full device compromise.

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

Command injection in D-Link DIR-X3260 1.02B02 allows network-adjacent attackers to execute arbitrary code as root through HNAP requests. The SetSysEmailSettings handler in prog.cgi passes an unvalidated EmailTo string into a system call received by lighttpd on TCP ports 80 and 443. Reaching the operation requires authentication, but the router's existing authentication mechanism is separately bypassable, leaving adjacent networks exposed to full device compromise.

The record

CVE
CVE-2023-44424
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?

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  1. Affected versionversion=-

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

D-Link · DIR-X3260 Firmwareversion=-
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.

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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
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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