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Fencer Vulns
medium 6.1

CVE-2018-8278 json

A spoofing vulnerability exists when Microsoft Edge improperly handles specific HTML content, aka "Microsoft Edge Spoofing Vulnerability."…

published 2018-07-11 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19941

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
7.1%
EPSS 7.1% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

A spoofing vulnerability exists when Microsoft Edge improperly handles specific HTML content, aka "Microsoft Edge Spoofing Vulnerability." This affects Microsoft Edge.

Patch / fix

Exploit prediction

7.13% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N

Affected products

  • Microsoft Microsoft Edge

Classification

Weakness
  • CWE-290 Authentication Bypass by Spoofing

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.