Cyber Resilience

CVE-2025-24322

Auth Bypass in Tenda Ac6 Firmware 02.03.01.110

Published
20 August 2025
Modified
17 June 2026
CVSS Score v3.1 8.1
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0057 44th percentile
Risk Priority 60 floored blend · peak EPSS

Summary

CVE-2025-24322 is a high-severity Missing Critical Step in Authentication (CWE-304) vulnerability in Tenda Ac6 Firmware. Its CVSS base score is 8.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 44th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to IA-2 (Identification and Authentication (Organizational Users)) and IA-5 (Authenticator Management) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

An unsafe default authentication vulnerability exists in the Initial Setup Authentication functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted network request can lead to arbitrary code execution. An attacker can browse to the device to trigger this vulnerability.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-27129Same product: Tenda Ac6
CVE-2025-24496Same product: Tenda Ac6
CVE-2025-60343Same product: Tenda Ac6
CVE-2025-60340Same product: Tenda Ac6
CVE-2025-55499Same product: Tenda Ac6
CVE-2025-25505Same product: Tenda Ac6
CVE-2025-29121Same product: Tenda Ac6
CVE-2025-50260Same product: Tenda Ac6
CVE-2025-70252Same product: Tenda Ac6
CVE-2025-50641Same product: Tenda Ac6

Affected Assets

tenda
ac6 firmware
02.03.01.110

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 6 hardening rules · 2 OS baselines
Validate
Prove the fix (OWASP ASVS)
  • V7.2.4

Mitigating Controls (NIST 800-53 r5) AI

IA-2 requires unique identification and authentication of users, directly mandating that all critical authentication steps be performed rather than skipped.

IA-8 requires unique identification and authentication of non-organizational users, ensuring the full authentication process is executed without missing steps.

IA-5 enforces proper authenticator lifecycle steps (verification, distribution, revocation) so that no required step in the authentication technique is omitted.

AC-3 enforces access decisions only after approved authentication has completed, making skipped authentication steps ineffective.

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-03 mostly match
prevents

Requiring complete authentication (e.g., MFA, password policy) directly stops omission of critical steps in the auth process.

PR.AA-02 partial match
prevents

Proper identity proofing and credential binding prevents skipping enrollment steps that weaken authentication.

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.

degrades

Mandates secure authentication mechanisms, explicitly addressing missing steps in authentication flows.

degrades

Directly requires secure management of authentication credentials and processes, preventing skipped critical steps.

prevents

Secure development lifecycle can catch missing auth steps during design, but does not directly enforce runtime authentication.

prevents

Application security requirements may specify complete auth flows, but the control itself is broader.

prevents

Secure coding practices can prevent missing auth steps, yet the control is not specific to authentication.

mitigates

Limits access based on proper authentication; incomplete auth weakens the restriction.

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).

RHEL 7 (2 rules)
  • V-204425 The Red Hat Enterprise Linux operating system must be configured so that the SSH daemon does not allow authentication using an empty password. prevents CWE-304
  • V-204424 The Red Hat Enterprise Linux operating system must not allow accounts configured with blank or null passwords. prevents CWE-304
Ubuntu 22.04 (1 rule)
  • V-260470 Ubuntu 22.04 LTS, when booted, must require authentication upon booting into single-user and maintenance modes. prevents CWE-304

References