Cyber Resilience

CVE-2025-34035

RCE in Engeniustech Esr600 Firmware 1.1.0.50 … 1.4.9

Public PoCRCECommand Injection
Published
24 June 2025
Modified
17 June 2026
CVSS Score v4 10.0
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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 0.12 96th percentile
Risk Priority 57 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2025-34035 is a critical-severity OS Command Injection (CWE-78) vulnerability in Engeniustech Esr600 Firmware. Its CVSS base score is 10.0 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 4% of CVEs by exploit likelihood; 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 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.

An OS command injection vulnerability exists in EnGenius EnShare Cloud Service version 1.4.11 and earlier. The usbinteract.cgi script fails to properly sanitize user input passed to the path parameter, allowing unauthenticated remote attackers to inject arbitrary shell commands. The injected commands are executed with root privileges, leading to full system compromise. The issue is tracked as CWE-78 and carries a CVSS 4.0 score of 10.0.

Unauthenticated remote attackers can exploit the flaw over the network without any user interaction or credentials. Successful exploitation grants attackers root-level access to the affected device, enabling complete system takeover including arbitrary command execution and potential persistence.

Exploitation evidence was observed by the Shadowserver Foundation on 2024-12-05 UTC. The associated EPSS score reached a peak of 0.1036 with no material rise from its starting value. Public references consist primarily of exploit disclosures dating to 2017 rather than vendor advisories describing patches or mitigations.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

An OS command injection vulnerability exists in EnGenius EnShare Cloud Service version 1.4.11 and earlier. The usbinteract.cgi script fails to properly sanitize user input passed to the path parameter, allowing unauthenticated remote attackers to inject arbitrary shell commands. The injected…

more

commands are executed with root privileges, leading to full system compromise. Exploitation evidence was observed by the Shadowserver Foundation on 2024-12-05 UTC.

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-2024-36061Same vendor: Engeniustech
CVE-2024-31976Same vendor: Engeniustech
CVE-2025-8628Shared CWE-78
CVE-2024-22836Shared CWE-78
CVE-2023-25826Shared CWE-78
CVE-2026-65590Shared CWE-78
CVE-2026-72880Shared CWE-78
CVE-2024-28125Shared CWE-78
CVE-2026-9207Shared CWE-78
CVE-2026-33145Shared CWE-78

Affected Assets

engeniustech
esr300 firmware
1.1.0.28, 1.3.1.42, 1.4.0, 1.4.1.28, 1.4.2
engeniustech
esr350 firmware
1.1.0.29, 1.3.1.41, 1.4.0, 1.4.11, 1.4.2
engeniustech
esr600 firmware
1.1.0.50, 1.2.1.46, 1.3.1.63, 1.4.0.23, 1.4.1
engeniustech
esr900 firmware
1.1.0, 1.2.2.23, 1.3.0, 1.3.1.26, 1.3.5.18
engeniustech
esr1200 firmware
1.1.0, 1.3.1.34, 1.4.1, 1.4.3, 1.4.5
engeniustech
esr1750 firmware
1.1.0, 1.2.2.27, 1.3.0, 1.3.1.34, 1.4.0
engeniustech
epg5000 firmware
1.2.0, 1.3.0, 1.3.2, 1.3.3, 1.3.3.17

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