CVE-2023-51391 — A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference d

A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.

01What is this vulnerability?

A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.

02Affected products

Vendor	Product	Versions
silabs.com	?	0

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: 2024-04-16T19:19:26.502Z
• Last modified: 2025-02-13T17:19:44.183Z

09References

• community.silabs.com — https://community.silabs.com/068Vm000004688g
• www.talosintelligence.com — https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-1945