CVE-2026-13545Public exploitNetwork attack vector

Authenticated root command execution via unsanitized UID

Published Jun 29, 2026 · Updated Jun 29, 2026

OS command injection in D-Link DCS-935L 1.10.01 allows remote authenticated users to execute arbitrary commands as root via HTTP POST. In sub_400E40, setconf.cgi copies the unvalidated UID POST value with strcpy, interpolates it into a shell command with sprintf, and passes the result to popen. HTTP authentication and valid companion fields are required; successful exploitation runs commands as root and returns their output in the response.

CVSS severity8.8
High
EPSS probability5.54%
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 DCS-935L 1.10.01 allows remote authenticated users to execute arbitrary commands as root via HTTP POST. In sub_400E40, setconf.cgi copies the unvalidated UID POST value with strcpy, interpolates it into a shell command with sprintf, and passes the result to popen. HTTP authentication and valid companion fields are required; successful exploitation runs commands as root and returns their output in the response.

The record

CVE
CVE-2026-13545
Published
Jun 29, 2026
Updated
Jun 29, 2026
Vendor
D-Link
Product
DCS-935L
Classifications
CWE-77, CWE-78, T1190, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 29, 2026Record 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=1.10.01

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DCS-935Lversion=1.10.01

Published CVSS scores

9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
7.4VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8VulDBCVSS:3.1/AV:N/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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1190Exploit Public-Facing Application
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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