CVE-2026-4537Public exploitNetwork attack vector

Authenticated root command execution via unsanitized route data

Published Mar 22, 2026 · Updated Mar 22, 2026

Command injection in Cudy TR1200 R46-2.4.15-20250721-164017 allows remote authenticated users to execute arbitrary commands. The action_ipsec_conn function passes attacker-controlled trailing data from the IPsec LuCI route to luci.util.exec without special-character filtering. Administrator-level access and a valid sysauth cookie are required; injected shell syntax executes as root and can expose a root shell.

CVSS severity4.7
Medium
EPSS probability9.39%
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 Cudy TR1200 R46-2.4.15-20250721-164017 allows remote authenticated users to execute arbitrary commands. The action_ipsec_conn function passes attacker-controlled trailing data from the IPsec LuCI route to luci.util.exec without special-character filtering. Administrator-level access and a valid sysauth cookie are required; injected shell syntax executes as root and can expose a root shell.

The record

CVE
CVE-2026-4537
Published
Mar 22, 2026
Updated
Mar 22, 2026
Vendor
Cudy
Product
TR1200
Classifications
CWE-77, CWE-74, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 22, 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=R46-2.4.15-20250721-164017

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Cudy · TR1200version=R46-2.4.15-20250721-164017

Published CVSS scores

4.7VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
5.8VulDBAV:N/AC:L/Au:M/C:P/I:P/A:P
2.0VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('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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