Cyber Resilience

CVE-2026-22227

Command Injection in Tp-Link Archer Be230 Firmware ≤ 1.2.4

Command Injection
Published
02 February 2026
Modified
06 February 2026
Patch / advisory
View advisory
CVSS Score v4 8.5
Click a component to see what it means
Raw vectorCVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.026 84th percentile
Risk Priority 33 floored blend · peak EPSS

Summary

CVE-2026-22227 is a high-severity OS Command Injection (CWE-78) vulnerability in Tp-Link Archer Be230 Firmware. Its CVSS base score is 8.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 16% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2026-22227 is a command injection vulnerability (CWE-78) in the configuration backup restoration function of the TP-Link Archer BE230 v1.2 router firmware. It affects versions prior to 1.2.4 Build 20251218 rel.70420 and represents one of multiple distinct OS command injection issues across separate code paths in the device, each tracked under a unique CVE ID. The vulnerability has a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), indicating high confidentiality, integrity, and availability impacts.

Exploitation requires an attacker to first authenticate as an administrator (PR:H), after which they can leverage the backup restoration feature over the network (AV:N) with low complexity and no user interaction. Successful exploitation grants full administrative control of the device, enabling severe compromise of configuration integrity, network security, and service availability.

TP-Link advisories recommend updating to firmware version 1.2.4 Build 20251218 rel.70420 or later, available via regional download pages such as those for the US, global, and Singapore sites. Additional guidance is provided in TP-Link's FAQ 4935.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

A command injection vulnerability may be exploited after the admin's authentication via the configuration backup restoration function of the TP-Link Archer BE230 v1.2. Successful exploitation could allow an attacker to gain full administrative control of the device, resulting in severe…

more

compromise of configuration integrity, network security, and service availability. This CVE covers one of multiple distinct OS command injection issues identified across separate code paths. Although similar in nature, each instance is tracked under a unique CVE ID. This issue affects Archer BE230 v1.2 < 1.2.4 Build 20251218 rel.70420.

CWE(s)
CWE-78

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
attack.mitre.org →
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.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-22224Same product: Tp-Link Archer Be230
CVE-2026-0630Same product: Tp-Link Archer Be230
CVE-2026-22223Same product: Tp-Link Archer Be230
CVE-2026-22222Same product: Tp-Link Archer Be230
CVE-2026-22226Same product: Tp-Link Archer Be230
CVE-2026-22221Same product: Tp-Link Archer Be230
CVE-2026-22225Same product: Tp-Link Archer Be230
CVE-2026-0631Same product: Tp-Link Archer Be230
CVE-2026-22229Same product: Tp-Link Archer Be230
CVE-2026-22220Same product: Tp-Link Archer Be230

Affected Assets

tp-link
archer be230 firmware
≤ 1.2.4

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.5
  • V1.2.8
  • V15.2.5

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation can discover missing or incorrect command sanitization during development.

SI-10 Information Input Validation good match

Input validation directly neutralizes or rejects special characters that would otherwise alter OS command structure.

AC-6 Least Privilege partial match

Least privilege reduces the permissions available to any process that could be subverted by injected commands.

CM-7 Least Functionality partial match

Least functionality restricts available OS commands and interpreters, limiting the blast radius of injection.

SA-8 Security and Privacy Engineering Principles partial match

Secure engineering principles require proper neutralization of untrusted input before command construction.

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.PS-06 mostly match
prevents

PR.PS-06's SDLC practices directly require secure coding and input handling that blocks command-injection defects, yet the single broad outcome leaves many specific neutralization vectors and verification gaps unaddressed.

PR.PS-02 partial match
prevents

Routine patching/maintenance can remediate known command-injection CVEs in dependencies (partial forward) but does nothing to stop developers from introducing improper neutralization in custom code (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.8.29 Security testing in development and acceptance mostly match
finds

Security testing and code review target insecure use of operating-system command interfaces, catching command-injection flaws introduced during development.

References