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7.8
CVE-2021-1880: This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.3, watchOS 7.4. Processing a maliciously crafted image may lead to arbitrary code execution.
CVE-2021-1880 · published 5 years ago
Summary
This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.3, watchOS 7.4. Processing a maliciously crafted image may lead to arbitrary code execution.
What to do
- Update apple macos to version 11.3 or later.
- Update apple watchos to version 7.4 or later.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| apple | macos |
>= 11.0, < 11.3 cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| apple | watchos |
< 7.4 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* |
Original advisory text
This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.3, watchOS 7.4. Processing a maliciously crafted image may lead to arbitrary code execution.
This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.3, watchOS 7.4. Processing a maliciously crafted image may lead to arbitrary code execution.
References
- https://support.apple.com/en-us/HT212324 Vendor Advisory
- https://support.apple.com/en-us/HT212325 Vendor Advisory
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Timeline
Published8 Sep 2021
Updated3 Nov 2026
First seen29 Sep 2026
Sources
CVE-2021-1880 · NVD
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