CVE-2022-48681 — Some Huawei smart speakers have a memory overflow vulnerability

Some Huawei smart speakers have a memory overflow vulnerability. Successful exploitation of this vulnerability may cause certain functions to fail.

01What is this vulnerability?

Some Huawei smart speakers have a memory overflow vulnerability. Successful exploitation of this vulnerability may cause certain functions to fail.

02Affected products

Vendor	Product	Versions
Huawei	EGRT	00 — 2.1.0.20(H100SP30C00)

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: 2024-05-28T03:55:02.207Z
• Last modified: 2024-08-03T15:17:55.723Z

09References

• www.huawei.com — https://www.huawei.com/cn/psirt/security-advisories/2024/huawei-sa-samovishss-28…
• https: — https://https://www.huawei.com/en/psirt/security-advisories/2024/huawei-sa-samov…