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Fencer Vulns
high 8.8

CVE-2021-30800 json

This issue was addressed with improved checks.

published 2021-09-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17717

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

This issue was addressed with improved checks. This issue is fixed in iOS 14.7. Joining a malicious Wi-Fi network may result in a denial of service or arbitrary code execution.

Patch / fix

  • Apple iOS 14.7

Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 5.8 AV:A/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Apple iOS

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.