CVE-2023-33735Public exploitNetwork attack vector

Remote command execution via permissive domain validation

Published May 31, 2023 · Updated Jan 10, 2025

Command injection in D-Link DIR-846 firmware 1.00A52 allows remote attackers to execute arbitrary commands through the HNAP1 interface. The SetNetworkTomographySettings handler accepts apostrophes and ampersands through check_domain(), then concatenates tomography_ping_address into a single-quoted ping shell command. The published request includes HNAP authentication headers and a session cookie, although the NVD assessment records no privileges required.

CVSS severity9.8
Critical
EPSS probability32.56%
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-846 firmware 1.00A52 allows remote attackers to execute arbitrary commands through the HNAP1 interface. The SetNetworkTomographySettings handler accepts apostrophes and ampersands through check_domain(), then concatenates tomography_ping_address into a single-quoted ping shell command. The published request includes HNAP authentication headers and a session cookie, although the NVD assessment records no privileges required.

The record

CVE
CVE-2023-33735
Published
May 31, 2023
Updated
Jan 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 10, 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.

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1059.004Unix Shell

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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