CVE-2023-27076G103 Firmware OS Command Injection
Command injection vulnerability found in Tenda G103 v.1.0.0.5 allows attacker to execute arbitrary code via a the language parameter.
Published Apr 10, 2023 · Updated May 5, 2025
Key Facts
Patch immediately- CVE-2023-27076 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting G103 Firmware (Tenda).
- It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Feb 1, 2023. Public exploit code is available.
- EPSS estimates a 23% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
23%
Higher than 97.7% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
35/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Feb 1, 2023
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
3
Reports of active use
Description
Command injection vulnerability found in Tenda G103 v.1.0.0.5 allows attacker to execute arbitrary code via a the language parameter.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CIRCL KEV | Feb 1, 2023 | n/a | Not reported |
| Industry KEV feed | Feb 1, 2023 | n/a | Not reported |
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| G103 FirmwareTenda | 1.0.0.5 | n/a |
Timeline
Added to CIRCL KEV
Feb 1, 2023
Added to Industry KEV feed
Feb 1, 2023
Publicly disclosed
Apr 10, 2023
Last updated
May 5, 2025
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- exploitVulnCheck exploitation report
- exploitgithub.com · 1.md
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Command injection vulnerability found in Tenda G103 v.1.0.0.5 allows attacker to execute arbitrary code via a the language parameter.
Affected: G103 Firmware (Tenda) versions 1.0.0.5. The full list is in the CVE brief.
It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Feb 1, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2023-27076 On Your Attack Surface?
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