What is CVE-2018-7356?

CVE-2018-7356 is a medium-severity vulnerability in ZTE Zxr10 8905e, classified under Authentication Bypass by Capture-replay. CVSS score: 5.6/10. Published 2018-11-01.

How severe is CVE-2018-7356?

Medium severity. CVSS v3 base score is 5.6 out of 10.

Vulnerability in ZTE Zxr10 8905e

CVE-2018-7356

All versions up to V3.03.10.B23P2 of ZTE ZXR10 8905E product are impacted by TCP Initial Sequence Number (ISN) reuse vulnerability, which can generate easily predictable ISN, and allows remote attackers to spoof connections.

Published 2018-11-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.007 (50.9th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-294 — Authentication Bypass by Capture-replay

References

support.zte.com.cn/support/news/LoopholeInfoDetail.aspx (Vendor Advisory)

Frequently asked questions

What is CVE-2018-7356?: CVE-2018-7356 is a medium-severity vulnerability in ZTE Zxr10 8905e, classified under Authentication Bypass by Capture-replay. CVSS score: 5.6/10. Published 2018-11-01.
How severe is CVE-2018-7356?: Medium severity. CVSS v3 base score is 5.6 out of 10.