CVE-2022-48391 — In telephony service, there is a possible missing permission check

In telephony service, there is a possible missing permission check. This could lead to local denial of service with no additional execution privileges.

01What is this vulnerability?

In telephony service, there is a possible missing permission check. This could lead to local denial of service with no additional execution privileges.

02Affected products

Vendor	Product	Versions
Unisoc (Shanghai) Technologies Co., Ltd.	SC9863A/SC9832E/SC7731E/T610/T310/T606/T760/T610/T618/T606/T612/T616/T760/T770/T820/S8000	Android10/Android11/Android12

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: 2023-06-06T05:12:57.525Z
• Last modified: 2025-01-08T15:23:22.690Z

09References

• www.unisoc.com — https://www.unisoc.com/en_us/secy/announcementDetail/1664822361414762498