Security Resilience

CVE-2023-30053

RCE in Totolink A7100Ru Firmware 7.4cu.2313_b20191024

Public PoCRCECommand Injection
Published
05 May 2023
Modified
29 January 2025
CVSS Score v3.1 9.8
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:H/A:H
EPSS Score 0.021 81th percentile
Risk Priority 78 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-2023-30053 is a critical-severity OS Command Injection (CWE-78) vulnerability in Totolink A7100Ru Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique NTDS (T1003.003); ranked in the top 19% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

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

TOTOLINK A7100RU running firmware version V7.4cu.2313_B20191024 contains a command-injection vulnerability tracked as CVE-2023-30053 and assigned CWE-78. The flaw received a CVSS 3.1 score of 9.8, reflecting network attackability without authentication or user interaction and full impact on confidentiality, integrity, and availability.

An unauthenticated attacker with network access can supply crafted input that results in arbitrary operating-system command execution on the device. Successful exploitation therefore grants an adversary the ability to read or modify configuration and data, install persistent malware, or disrupt device operation.

Public references consist of proof-of-concept material hosted on GitHub that demonstrates the injection vector. The associated EPSS score rose from a low baseline to a peak of 0.0508 on 2025-12-11 before receding to its current value of 0.0358, indicating a measurable but temporary increase in observed exploitation interest after disclosure.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

TOTOLINK A7100RU V7.4cu.2313_B20191024 is vulnerable to Command Injection.

CWE(s)
CWE-78

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
attack.mitre.org →
T1007 System Service Discovery Discovery
Adversaries may try to gather information about registered local system services.
attack.mitre.org →
T1010 Application Window Discovery Discovery
Adversaries may attempt to get a listing of open application windows.
attack.mitre.org →
T1021.004 SSH Lateral Movement
Adversaries may use [Valid Accounts](https://attack.
attack.mitre.org →
T1021.008 Direct Cloud VM Connections Lateral Movement
Adversaries may leverage [Valid Accounts](https://attack.
attack.mitre.org →
T1027.001 Binary Padding Stealth
Adversaries may use binary padding to add junk data and change the on-disk representation of malware.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-25395Same product: Totolink A7100Ru
CVE-2023-30054Same product: Totolink A7100Ru
CVE-2024-22942Same vendor: Totolink
CVE-2024-23059Same vendor: Totolink
CVE-2024-57017Same vendor: Totolink
CVE-2024-24331Same vendor: Totolink
CVE-2025-28035Same vendor: Totolink
CVE-2024-57021Same vendor: Totolink
CVE-2024-8077Same vendor: Totolink
CVE-2024-24325Same vendor: Totolink

Affected Assets

totolink
a7100ru firmware
7.4cu.2313_b20191024

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

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

SI-10 Information Input Validation
addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

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
blocks

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
blocks

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.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.8.10 Information deletion partial match
removes

References