CVE-2025-44835Public exploitNetwork attack vector

Authenticated command execution via unchecked web filter input

Published May 1, 2025 · Updated May 1, 2025

Command injection in D-Link DIR-816 A2 firmware 1.1.0B05 allows remote authenticated users to execute arbitrary shell commands. iptablesWebsFilterRun copies websURLFilters data into an iptables command passed to doSystem without validation. Access to the web management endpoint and a valid token ID are required, after which injected shell commands run on the router.

CVSS severity6.3
Medium
EPSS probability1.06%
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-816 A2 firmware 1.1.0B05 allows remote authenticated users to execute arbitrary shell commands. iptablesWebsFilterRun copies websURLFilters data into an iptables command passed to doSystem without validation. Access to the web management endpoint and a valid token ID are required, after which injected shell commands run on the router.

The record

CVE
CVE-2025-44835
Published
May 1, 2025
Updated
May 1, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 1, 2025CVE publishedPublication date reported by the CVE source.
  2. May 1, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
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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