Cyber Resilience

CVE-2025-52364

Tenda Cp3 Pro Firmware 22.5.4.93

Public PoC
Published
09 July 2025
Modified
17 June 2026
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0051 41th percentile
Risk Priority 58 floored blend · peak EPSS

Summary

CVE-2025-52364 is a high-severity Use of Weak Credentials (CWE-1391) vulnerability in Tenda Cp3 Pro Firmware. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Default Accounts (T1078.001); ranked at the 41th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to IA-5 (Authenticator Management) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability Data

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…

more

if default or weak credentials are present

CWE(s)
CWE-1391

Related Threats

MITRE ATT&CK Enterprise Techniques

T1078.001 Default Accounts Stealth
Adversaries may obtain and abuse credentials of a default account as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.
attack.mitre.org →
T1110 Brute Force Credential Access
Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.
attack.mitre.org →
T1110.001 Password Guessing Credential Access
Adversaries with no prior knowledge of legitimate credentials within the system or environment may guess passwords to attempt access to accounts.
attack.mitre.org →
T1078 Valid Accounts Stealth
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.
attack.mitre.org →
T1110.002 Password Cracking Credential Access
Adversaries may use password cracking to attempt to recover usable credentials, such as plaintext passwords, when credential material such as password hashes are obtained.
attack.mitre.org →
T1133 External Remote Services Persistence
Adversaries may leverage external-facing remote services to initially access and/or persist within a network.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-52363Same product: Tenda Cp3 Pro
CVE-2023-31240Shared CWE-1391
CVE-2025-8182Same vendor: Tenda
CVE-2025-4057Shared CWE-1391
CVE-2025-53558Shared CWE-1391
CVE-2024-42027Shared CWE-1391
CVE-2025-30519Shared CWE-1391
CVE-2026-8076Shared CWE-1391
CVE-2024-21865Shared CWE-1391
CVE-2025-59460Shared CWE-1391

Affected Assets

tenda
cp3 pro firmware
22.5.4.93

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 7 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V6.2.2
  • V6.3.1
  • V6.3.2
  • V6.4.2

Mitigating Controls (NIST 800-53 r5) AI

IA-5 Authenticator Management good match

IA-5 directly requires management of authenticator strength, distribution, and replacement, stopping default or guessable credentials from being introduced or used.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-01 mostly match
prevents

PR.AA-01's credential issuance and key-management processes directly block most weak/default credential usage, yet leave hard-coded or product-design instances of CWE-1391 only partially addressed.

PR.AA-03 mostly match
prevents

Password-strength policies in PR.AA-03 directly block weak authenticators, but the control leaves hard-coded/default credentials largely unaddressed.

PR.PS-01 mostly match
prevents

Hardened baselines and default-setting reviews directly block default/hard-coded creds (mostly), yet leave algorithmic guessing, reuse, and non-config sources of weak credentials untouched (partial).

PR.AT-01 partial match
prevents

Training raises password-hygiene awareness and can therefore reduce some weak-credential mistakes, yet supplies no enforcement mechanism and leaves the dominant technical sources of CWE-1391 untouched.

PR.AT-02 partial match
prevents

Role-based awareness training can reduce the chance developers or admins introduce weak credentials but supplies no enforcement or verification, leaving the bulk of CWE-1391 risk untouched.

PR.PS-02 partial match
prevents

Maintenance/patching can incidentally remove known weak-default creds in updated versions (partial forward) but does nothing to ensure credentials are strong at design, deployment or config time (none reverse).

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.17 Authentication information full match
degrades

Directly requires secure generation, distribution and storage of authentication credentials, eliminating default/hard-coded weak passwords.

A.8.5 Secure authentication full match
degrades

Mandates secure authentication mechanisms that preclude use of weak or default credentials.

A.8.28 Secure coding mostly match
prevents

Secure-coding rules can prohibit hard-coded passwords, yet coverage depends on specific coding standards adopted.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can discover weak credentials, but does not guarantee they are prevented by design.

A.8.9 Configuration management mostly match
prevents

Enforces secure baseline configurations that should remove default credentials, yet does not guarantee credential strength.

A.8.2 Privileged access rights partial match
degrades

Restricts privileged accounts but does not explicitly address default or hard-coded credentials for those accounts.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

Oracle Linux 8 (3 rules)
  • V-248667 OL 8 must configure the use of the pam_faillock.so module in the /etc/pam.d/system-auth file. prevents CWE-1391
  • V-248668 OL 8 must configure the use of the pam_faillock.so module in the /etc/pam.d/password-auth file. prevents CWE-1391
  • V-248827 OL 8 must not have the rsh-server package installed. prevents CWE-1391
RHEL 7 (1 rule)
  • V-204442 The Red Hat Enterprise Linux operating system must not have the rsh-server package installed. prevents CWE-1391
RHEL 8 (1 rule)
  • V-244533 RHEL 8 must configure the use of the pam_faillock.so module in the /etc/pam.d/system-auth file. prevents CWE-1391

References