What is CVE-2022-35623?

CVE-2022-35623 is a high-severity vulnerability in Nordicsemi Nrf5 Sdk For Mesh, classified under Out-of-bounds Write. CVSS score: 8.2/10. Published 2022-08-15.

How severe is CVE-2022-35623?

High severity. CVSS v3 base score is 8.2 out of 10.

Is CVE-2022-35623 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Nordicsemi Nrf5 Sdk For Mesh

CVE-2022-35623

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

Vulnerability class: Buffer Overflow

Published 2022-08-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L.

EPSS exploit prediction

EPSS: 0.009 (58.4th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Nordicsemi Nrf5 Sdk For Mesh — versions 5.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

docs.google.com/document/d/1Y3sB5JbyrTIOgvA1h9X6o8pJQBG4PjWF/edit (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-35623?: CVE-2022-35623 is a high-severity vulnerability in Nordicsemi Nrf5 Sdk For Mesh, classified under Out-of-bounds Write. CVSS score: 8.2/10. Published 2022-08-15.
How severe is CVE-2022-35623?: High severity. CVSS v3 base score is 8.2 out of 10.
Is CVE-2022-35623 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.