Cyber Resilience

CVE-2026-0654

Command Injection in Tp-Link Deco Be25 Firmware ≤ 1.1.1

Command Injection
Published
02 March 2026
Modified
06 March 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 0.0029 22th percentile
Risk Priority 28 floored blend · peak EPSS

Summary

CVE-2026-0654 is a high-severity OS Command Injection (CWE-78) vulnerability in Tp-Link Deco Be25 Firmware. Its CVSS base score is 8.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked at the 22th 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 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-2026-0654 involves improper input handling in the administration web interface of the TP-Link Deco BE25 v1.0, enabling crafted input to be executed as part of an OS command through a crafted configuration file. This command injection vulnerability, classified under CWE-78, affects Deco BE25 v1.0 versions through 1.1.1 Build 20250822.

An authenticated adjacent attacker can exploit this vulnerability to execute arbitrary commands on the device. According to the CVSS v3.1 base score of 8.0 (AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), exploitation requires physical adjacency, low complexity, and low privileges (local authentication), but grants high impacts on confidentiality, integrity, and availability.

TP-Link provides firmware updates as the primary mitigation, available via support download pages for the Deco BE25, including regional variants at https://www.tp-link.com/en/support/download/deco-be25/#Firmware, https://www.tp-link.com/sg/support/download/deco-be25/#Firmware, https://www.tp-link.com/us/support/download/deco-be25/v1/#Firmware, and additional guidance in FAQ 4993 at https://www.tp-link.com/us/support/faq/4993/.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

Improper input handling in the administration web interface on TP-Link Deco BE25 v1.0 allows crafted input to be executed as part of an OS command. An authenticated adjacent attacker may execute arbitrary commands via crafted configuration file, impacting confidentiality, integrity…

more

and availability of the device. This issue affects Deco BE25 v1.0: through 1.1.1 Build 20250822.

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-2026-0655Same product: Tp-Link Deco Be25
CVE-2024-21833Same vendor: Tp-Link
CVE-2023-43482Same vendor: Tp-Link
CVE-2026-30818Same vendor: Tp-Link
CVE-2023-38563Same vendor: Tp-Link
CVE-2023-36498Same vendor: Tp-Link
CVE-2026-22224Same vendor: Tp-Link
CVE-2023-38588Same vendor: Tp-Link
CVE-2025-15518Same vendor: Tp-Link
CVE-2026-9044Same vendor: Tp-Link

Affected Assets

tp-link
deco be25 firmware
≤ 1.1.1

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