CVE-2021-1849 json
An issue in code signature validation was addressed with improved checks.
published 2021-09-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7313
- cvss
- 7.5
- 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 in code signature validation was addressed with improved checks. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A malicious application may be able to bypass Privacy preferences.
Patch / fix
- Apple iOS and iPadOS 14.5
- Apple tvOS 14.5
- Apple watchOS 7.4
- Apple macOS 11.3
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 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- Apple iOS and iPadOS
- Apple tvOS
- Apple watchOS
- Apple macOS
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
support.apple.com
/en-us/HT212317
vendor-advisory
-
support.apple.com
/en-us/HT212323
vendor-advisory
-
support.apple.com
/en-us/HT212324
vendor-advisory
-
support.apple.com
/en-us/HT212325
vendor-advisory
Sources
- CVE List CVE-2021-1849
- NVD CVE-2021-1849
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.