How severe is CVE-2022-31446?

CVE-2022-31446 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-31446 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 33% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-31446?

CVE-2022-31446 primarily affects Tendacn Ac18 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-31446?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-31446 published?

CVE-2022-31446 was published on 2022-06-14 and last updated on 2026-06-17.

CVE-2022-31446

CVE-2022-31446 is a critical-severity vulnerability in Tendacn Ac18 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 33% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 33% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Tendacn Ac18 Firmware
Published: 2022-06-14
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-31446?: 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.
How severe is CVE-2022-31446?: CVE-2022-31446 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-31446 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 33% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-31446?: CVE-2022-31446 primarily affects Tendacn Ac18 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-31446?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-31446 published?: CVE-2022-31446 was published on 2022-06-14 and last updated on 2026-06-17.

References

https://github.com/wshidamowang/Router/blob/main/Tenda/AC18/RCE_1.md

Affected products (2)

cpe:2.3:o:tendacn:ac18_firmware:15.03.05.05:*:*:*:*:*:*:*
cpe:2.3:o:tendacn:ac18_firmware:15.03.05.19:*:*:*:*:*:*:*

More vulnerabilities in Tendacn Ac18 Firmware

CVE-2024-33182 — Critical (CVSS 9.8): Tenda AC18 V15.03.3.10_EN was discovered to contain a stack-based buffer overflow vulnerability via the deviceId…
CVE-2024-33180 — Critical (CVSS 9.8): Tenda AC18 V15.03.3.10_EN was discovered to contain a stack-based buffer overflow vulnerability via the deviceId…
CVE-2022-40869 — Critical (CVSS 9.8): Tenda AC15 and AC18 routers V15.03.05.19 contain stack overflow vulnerabilities in the function fromDhcpListClient with…
CVE-2022-40865 — Critical (CVSS 9.8): Tenda AC15 and AC18 routers V15.03.05.19 contain heap overflow vulnerabilities in the function setSchedWifi with the…
CVE-2022-40864 — Critical (CVSS 9.8): Tenda AC15 and AC18 routers V15.03.05.19 contain stack overflow vulnerabilities in the function setSmartPowerManagement…
CVE-2022-40862 — Critical (CVSS 9.8): Tenda AC15 and AC18 router V15.03.05.19 contains stack overflow vulnerability in the function fromNatStaticSetting with…

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