CVE-2022-38692 — In BootROM, there is a missing size check for RSA keys in Certificate Type 0 val

In BootROM, there is a missing size check for RSA keys in Certificate Type 0 validation. This could lead to memory buffer overflow without requiring additional execution privileges.

01What is this vulnerability?

In BootROM, there is a missing size check for RSA keys in Certificate Type 0 validation. This could lead to memory buffer overflow without requiring additional execution privileges.

02Affected products

Vendor	Product	Versions
Unisoc (Shanghai) Technologies Co., Ltd.	SC9863A/T310/T610/T618/T606/T612/T616/T760/T770/T820/S8000/	/

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: 2025-09-01T07:28:11.880Z
• Last modified: 2025-09-02T13:47:08.245Z

09References

• www.nccgroup.com — https://www.nccgroup.com/research-blog/there-s-another-hole-in-your-soc-unisoc-r…