How severe is CVE-2026-102762?

CVE-2026-102762 has a CVSS 4.0 base score of 8.2, rated high severity.

Is CVE-2026-102762 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-102762?

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

When was CVE-2026-102762 published?

CVE-2026-102762 was published on 2026-09-29 and last updated on 2026-09-30.

CVE-2026-102762

CVE-2026-102762 is a high-severity vulnerability with a CVSS 4.0 base score of 8.2. 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-401.

Key facts

Severity: High (CVSS 4.0 base score 8.2)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Published: 2026-09-29
Last modified: 2026-09-30

Description

The NetX Duo MQTT client leaks the packet carrying a malformed PUBLISH message. Each malformed PUBLISH costs one packet, or one chain of packets, from the network driver's receive pool, and nothing returns it. A peer that can deliver a few dozen such messages exhausts the pool and stops all inbound network traffic on the device until it is rebooted.

Frequently asked questions

What is CVE-2026-102762?: The NetX Duo MQTT client leaks the packet carrying a malformed PUBLISH message. Each malformed PUBLISH costs one packet, or one chain of packets, from the network driver's receive pool, and nothing returns it. A peer that can deliver a few dozen such messages exhausts the pool and stops all inbound network traffic on the device until it is rebooted.
How severe is CVE-2026-102762?: CVE-2026-102762 has a CVSS 4.0 base score of 8.2, rated high severity.
Is CVE-2026-102762 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-102762?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-102762 published?: CVE-2026-102762 was published on 2026-09-29 and last updated on 2026-09-30.

References

https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-9v23-qwp9-2q3h

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