CVE-2021-1849
HIGHCVSS 7.5/10EPSS 0.92%
Last modified
CVE-2021-1849 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.92% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 14.5 |
| Apple | Iphone Os | < 14.5 |
| Apple | Macos | >= 11.0, < 11.3 |
| Apple | Tvos | < 14.5 |
| Apple | Watchos | < 7.4 |
References
- https://support.apple.com/en-us/HT212317Vendor Advisory
- https://support.apple.com/en-us/HT212323Vendor Advisory
- https://support.apple.com/en-us/HT212324Vendor Advisory
- https://support.apple.com/en-us/HT212325Vendor Advisory
- https://support.apple.com/en-us/HT212317Vendor Advisory
- https://support.apple.com/en-us/HT212323Vendor Advisory
- https://support.apple.com/en-us/HT212324Vendor Advisory
- https://support.apple.com/en-us/HT212325Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-1849?
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.
How severe is CVE-2021-1849?
CVE-2021-1849 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.
How do I fix CVE-2021-1849?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-1849?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST