Security Resilience

CVE-2023-27079

RCE in Tenda G103 Firmware 1.0.05

Published
23 March 2023
Modified
25 February 2025
CVSS Score v3.1 7.5
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:N/A:N
EPSS Score 0.019 79th percentile
Risk Priority 64 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-2023-27079 is a high-severity Command Injection (CWE-77) vulnerability in Tenda G103 Firmware. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 21% 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.

CVE-2023-27079 is a command injection vulnerability, tracked as CWE-77, that affects the Tenda G103 router running firmware version 1.0.05. The issue permits an attacker to obtain sensitive information by submitting a crafted package to the device and carries a CVSS 3.1 base score of 7.5 reflecting a network-accessible attack with no required credentials or user interaction.

An unauthenticated remote attacker can exploit the flaw over the network to read sensitive data from the router. The provided references consist of a GitHub repository entry that documents the vulnerability through a proof-of-concept package but contain no official vendor advisory or patch information.

EPSS scores for the CVE remain low, with a current value of 0.0575 and a peak of 0.0578, indicating limited observed exploitation interest since disclosure.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Command Injection vulnerability found in Tenda G103 v.1.0.05 allows an attacker to obtain sensitive information via a crafted package

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-33530Same product: Tenda G103
CVE-2026-5338Same product: Tenda G103
CVE-2026-5339Same product: Tenda G103
CVE-2023-27076Same product: Tenda G103
CVE-2023-49040Same vendor: Tenda
CVE-2024-2982Same vendor: Tenda
CVE-2025-25632Same vendor: Tenda
CVE-2023-49436Same vendor: Tenda
CVE-2023-27240Same vendor: Tenda
CVE-2023-49437Same vendor: Tenda

Affected Assets

tenda
g103 firmware
1.0.05

Mitigating Controls

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.

blocks

A.8.25 mandates secure SDLC practices including secure coding guidelines, security requirements, checkpoints, testing (scans/penetration), and developer training that reduce command injection defects, but leaves a minority slice (e.g. incomplete implementation of those practices, outsourced development without full assurance, or post-SDLC changes) where the weakness can still arise and be exploitable.

blocks

Application security requirements explicitly call for controls against injection flaws including command injection.

blocks

A.8.27 mandates security-by-design principles (e.g. distrust external input, secure session control, data validation/sanitization, least privilege) and design reviews that can stop command injection from being introduced, but this is only a minority slice of CWE-77 because the weakness can still arise in code that bypasses those principles, in non-reviewed components, or in runtime injection vectors the architecture review does not reach.

prevents

Secure coding standards require proper escaping and parameterization of commands, directly eliminating CWE-77.

finds

Security testing in development catches command-injection vulnerabilities before release.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-77, a class-level weakness, and none of its children carries one either.

References