CVE-2023-42664Public exploitNetwork attack vector

Authenticated root command execution via unsanitized PPTP intervals

Published Feb 6, 2024 · Updated Nov 4, 2025

Command injection in TP-Link ER7206 1.3.0 build 20230322 Rel.70591 allows remote authenticated users to execute commands via PPTP settings. The uhttpd PPTP global configuration handler passes pptphellointerval and lcpechointerval values to a shell command without sanitizing metacharacters. Administrative access to the web interface is required, after which injected commands run as root and grant unrestricted shell access.

CVSS severity7.2
High
EPSS probability3.44%
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 TP-Link ER7206 1.3.0 build 20230322 Rel.70591 allows remote authenticated users to execute commands via PPTP settings. The uhttpd PPTP global configuration handler passes pptphellointerval and lcpechointerval values to a shell command without sanitizing metacharacters. Administrative access to the web interface is required, after which injected commands run as root and grant unrestricted shell access.

The record

CVE
CVE-2023-42664
Published
Feb 6, 2024
Updated
Nov 4, 2025
Vendor
TP-Link
Product
ER7206
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.3.0 build 20230322 Rel.70591

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

TP-Link · ER7206version=1.3.0 build 20230322 Rel.70591

Published CVSS scores

7.2Cisco TalosCVSS:3.1/AV:N/AC:L/PR:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS 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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