CVE-2022-31446Ac18 Firmware OS Command Injection
Tenda AC18 router V15.03.05.19 and V15.03.05.05 was discovered to contain a remote code execution (RCE) vulnerability via the Mac parameter at ip/goform/WriteFacMac.
Published Jun 14, 2022 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2022-31446 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Ac18 Firmware (Tendacn).
- It is exploited in the wild, listed in Industry KEV feed since May 22, 2024. No public exploit code is known.
- EPSS estimates a 35% 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)
35%
Higher than 98.4% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
37/100
Publication score, see How it works
Exploitation Verdict
KEV listed
May 22, 2024
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
1
Reports of active use
Description
Tenda AC18 router V15.03.05.19 and V15.03.05.05 was discovered to contain a remote code execution (RCE) vulnerability via the Mac parameter at ip/goform/WriteFacMac.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | May 22, 2024 | n/a | Not reported |
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Ac18 FirmwareTendacn | 15.03.05.05, 15.03.05.19 | n/a |
Timeline
Publicly disclosed
Jun 14, 2022
Added to Industry KEV feed
May 22, 2024
Last updated
Nov 21, 2024
Weakness Type
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
References
- exploitVulnCheck exploitation report
- exploitgithub.com · RCE_1.md
FAQ
Common Questions.
Tenda AC18 router V15.03.05.19 and V15.03.05.05 was discovered to contain a remote code execution (RCE) vulnerability via the Mac parameter at ip/goform/WriteFacMac.
Affected: Ac18 Firmware (Tendacn) versions 15.03.05.05, 15.03.05.19. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since May 22, 2024.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
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-2022-31446 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
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