How severe is CVE-2026-51844?

CVE-2026-51844 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-2026-51844 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-51844?

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.

Does CVE-2026-51844 have an EU (EUVD) identifier?

Yes. CVE-2026-51844 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38050.

When was CVE-2026-51844 published?

CVE-2026-51844 was published on 2026-06-19 and last updated on 2026-06-22.

CVE-2026-51844

CVE-2026-51844 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-121.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38050
Weakness: CWE-121
Published: 2026-06-19
Last modified: 2026-06-22

Description

Tenda AC7 v15.03.06.44 contains a stack buffer overflow vulnerability in the /goform/AdvSetMacMtuWan interface via the cloneType parameter.

Frequently asked questions

What is CVE-2026-51844?: Tenda AC7 v15.03.06.44 contains a stack buffer overflow vulnerability in the /goform/AdvSetMacMtuWan interface via the cloneType parameter.
How severe is CVE-2026-51844?: CVE-2026-51844 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-2026-51844 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-51844?: 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.
Does CVE-2026-51844 have an EU (EUVD) identifier?: Yes. CVE-2026-51844 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38050.
When was CVE-2026-51844 published?: CVE-2026-51844 was published on 2026-06-19 and last updated on 2026-06-22.

References

https://www.kdev.site/cve-request_006/

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