CVE-2023-25642 — There is a buffer overflow vulnerability in some ZTE mobile internet producsts

There is a buffer overflow vulnerability in some ZTE mobile internet producsts. Due to insufficient validation of tcp port parameter, an authenticated attacker could use the vulnerability to perform a denial of service attack.

01What is this vulnerability?

There is a buffer overflow vulnerability in some ZTE mobile internet producsts. Due to insufficient validation of tcp port parameter, an authenticated attacker could use the vulnerability to perform a denial of service attack.

02Affected products

Vendor	Product	Versions
ZTE	MC801A	MC801A_Elisa3_B19
ZTE	MC801A1	MC801A1_Elisa1_B04

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: 2023-12-14T07:17:08.945Z
• Last modified: 2024-08-02T11:25:19.252Z

09References

• support.zte.com.cn — https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1032504