CVE-2020-9999 json
A memory corruption issue was addressed with improved state management.
published 5y ago modified 4mo ago also EUVD-2020-30778
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 8.0%
- EPSS 8.0% chance of exploitation in 30 days, percentile 94%
- public exploits
- 0
- none known
Summary
A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, iTunes for Windows 12.10.9. Processing a maliciously crafted text file may lead to arbitrary code execution.
Patch / fix
- Apple macOS 11.0, 12.10
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7.96% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- Apple macOS
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
support.apple.com
/kb/HT211843
vendor-advisory
-
support.apple.com
/kb/HT211850
vendor-advisory
-
support.apple.com
/kb/HT211844
vendor-advisory
-
support.apple.com
/kb/HT211935
vendor-advisory
-
support.apple.com
/en-us/HT211931
vendor-advisory
-
support.apple.com
/en-us/HT211952
vendor-advisory
-
seclists.org
/fulldisclosure/2020/Dec/32
mailing-list, third-party-advisory
Sources
- CVE List CVE-2020-9999
- NVD CVE-2020-9999
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.