CVE-2025-52364: Insecure Permissions vulnerability in Tenda CP3 Pro Firmware V22.5.4.93 allows the telnet service (telnetd) by

This week

HIGH 7.5REMOTEMITIGATE

CVE-2025-52364 is a high-severity flaw (CVSS 7.5) affecting cp3 pro firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Insecure Permissions vulnerability in Tenda CP3 Pro Firmware V22.5.4.93 allows the telnet service (telnetd) by default at boot via the initialization script /etc/init.d/eth.sh. This allows remote attackers to connect to the device s shell over the network, potentially without authentication if default or weak credentials are present

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 54%)
CISA exploited list	No
Weakness	CWE-1391
Published	2025-07-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: tenda

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-09 15:15 UTCPublished CVE record published
2026-06-17 09:36 UTCUpdated Record last modified

tenda cp3 pro firmware MITIGATE

Affected: 22.5.4.93

Fixed in: no fixed release known

Safe to downgrade to: a release before 22.5.4.93

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-52364?

cp3 pro firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-52364 being exploited?

CVE-2025-52364 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-52364 affect?

CVE-2025-52364 affects cp3 pro firmware. Severity is high (CVSS 7.5). Insecure Permissions vulnerability in Tenda CP3 Pro Firmware V22.5.4.93 allows the telnet service (telnetd) by default at boot via the initialization script /etc/init.d/eth.sh. This allows remote attackers to connect to the device s shell o

How urgent is CVE-2025-52364?

Priority 48/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-52363 MEDIUM 6.8 MITIGATE Tenda CP3 Pro Firmware V22.5.4.93 contains a hardcoded root password hash in the /etc/passwd file and /etc/pas

References

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