CVE-2023-48906 — Stack Overflow vulnerability in Btstack 1

Stack Overflow vulnerability in Btstack 1.6 and earlier allows attackers to cause a denial of service via crafted input to the char_for_nibble function.

01What is this vulnerability?

Stack Overflow vulnerability in Btstack 1.6 and earlier allows attackers to cause a denial of service via crafted input to the char_for_nibble function.

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: 2024-04-01T00:00:00.000Z
• Last modified: 2025-03-28T19:27:33.878Z

09References

• www.cnblogs.com — https://www.cnblogs.com/focu5/p/18070469