Skip to content
Fencer Intel
medium 4.3

CVE-2020-1229 json

A security feature bypass vulnerability exists in Microsoft Outlook when Office fails to enforce security settings configured on a system,…

published 6y ago modified 4mo ago also EUVD-2020-12108

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

A security feature bypass vulnerability exists in Microsoft Outlook when Office fails to enforce security settings configured on a system, aka 'Microsoft Outlook Security Feature Bypass Vulnerability'.

Patch / fix

Is CVE-2020-1229 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

Exploit prediction

3.92% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Microsoft Microsoft 365 Apps for Enterprise for 32-bit Systems
  • Microsoft Microsoft 365 Apps for Enterprise for 64-bit Systems
  • Microsoft Microsoft Office
  • Microsoft Microsoft Word

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.