CVE-2020-27900 json
An issue existed in the handling of snapshots.
published 2020-12-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-20393
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
An issue existed in the handling of snapshots. The issue was resolved with improved permissions logic. This issue is fixed in macOS Big Sur 11.0.1. A malicious application may be able to preview files it does not have access to.
Patch / fix
- Apple macOS 11.0
Exploit prediction
0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Affected products
- Apple macOS
References
-
support.apple.com
/en-us/HT211931
vendor-advisory
-
seclists.org
/fulldisclosure/2020/Dec/32
mailing-list, third-party-advisory
Sources
- CVE List CVE-2020-27900
- NVD CVE-2020-27900
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.