Skip to content
Fencer Intel
medium 4.6

CVE-2026-20640 json

An inconsistent user interface issue was addressed with improved state management.

published 8mo ago modified 4mo ago also EUVD-2026-5935

cvss
4.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

Summary

An inconsistent user interface issue was addressed with improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3. An attacker with physical access to iPhone may be able to take and view screenshots of sensitive data from the iPhone during iPhone Mirroring with Mac.

Patch / fix

  • Apple iOS and iPadOS 26.3

Is CVE-2026-20640 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
8mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 4.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Apple iOS and iPadOS

Classification

Weakness
  • CWE-703 Improper Check or Handling of Exceptional Conditions

References

Sources

Fencer Intel 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.