CVE-2022-35623 — In Nordic nRF5 SDK for Mesh 5

In Nordic nRF5 SDK for Mesh 5.0, a heap overflow vulnerability can be triggered by sending a series of segmented control packets and access packets with the same SeqAuth

01What is this vulnerability?

In Nordic nRF5 SDK for Mesh 5.0, a heap overflow vulnerability can be triggered by sending a series of segmented control packets and access packets with the same SeqAuth

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-08-15T16:09:15.000Z
• Last modified: 2024-08-03T09:36:44.404Z

09References

• docs.google.com — https://docs.google.com/document/d/1Y3sB5JbyrTIOgvA1h9X6o8pJQBG4PjWF/edit?usp=sh…