How severe is CVE-2026-38142?

CVE-2026-38142 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-38142 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-38142?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-38142 published?

CVE-2026-38142 was published on 2026-07-01 and last updated on 2026-07-02.

CVE-2026-38142

CVE-2026-38142 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Published: 2026-07-01
Last modified: 2026-07-02

Description

An unauthenticated command injection vulnerability in the /goform/fast_setting_internet_set endpoint of Tenda AC18 v15.03.05.05 allows attackers to execute arbitrary commands via a crafted payload injected into the mac parameter.

Frequently asked questions

What is CVE-2026-38142?: An unauthenticated command injection vulnerability in the /goform/fast_setting_internet_set endpoint of Tenda AC18 v15.03.05.05 allows attackers to execute arbitrary commands via a crafted payload injected into the mac parameter.
How severe is CVE-2026-38142?: CVE-2026-38142 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-38142 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-38142?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-38142 published?: CVE-2026-38142 was published on 2026-07-01 and last updated on 2026-07-02.

References

https://github.com/longqx223/Tenda-ac-18-V15.03.05.05-/blob/main/Tenda%20AC18%20Unauthenticated%20Second-Order%20OS%20Command%20Injection%20in%20goformfast_setting_internet_set.pdf

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