What is CVE-2019-5243?

CVE-2019-5243 is a medium-severity vulnerability in Huawei Hg255s, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 4.3/10. Published 2019-06-10.

How severe is CVE-2019-5243?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Huawei Hg255s

CVE-2019-5243

There is a Clickjacking vulnerability in Huawei HG255s product. An attacker may trick user to click a link and affect the integrity of a device by exploiting this vulnerability.

Published 2019-06-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Huawei Hg255s
Huawei Hg255s Firmware
Hg255s — versions customized versions

Weakness classification (CWE)

CWE-1021 — Improper Restriction of Rendered UI Layers or Frames (Clickjacking)

References

utkusen.com/advisories/CVE-2019-5243.txt
support.huawei.com/carrier/navi (Not Applicable, Vendor Advisory)

Frequently asked questions

What is CVE-2019-5243?: CVE-2019-5243 is a medium-severity vulnerability in Huawei Hg255s, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 4.3/10. Published 2019-06-10.
How severe is CVE-2019-5243?: Medium severity. CVSS v3 base score is 4.3 out of 10.