A null pointer dereference was addressed with improved validation
Published Dec 23, 2021
7.8
HIGHCVSS 3.1
EPSS 0.92%
Description
A null pointer dereference was addressed with improved validation. This issue is fixed in macOS High Sierra 10.13, iCloud for Windows 7.0, watchOS 4, iOS 11, iTunes 12.7 for Windows. Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<7.0
- Version
-
- Version unspecifiedStatusaffectedConstraints<11
- Version
-
- Version unspecifiedStatusaffectedConstraints<12.7
- Version
-
- Version unspecifiedStatusaffectedConstraints<10.13
- Version
-
- Version unspecifiedStatusaffectedConstraints<4
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Apple | iCloud for Windows | n/a |
| ||||||
| Apple | iOS | n/a |
| ||||||
| Apple | iTunes for Windows | n/a |
| ||||||
| Apple | macOS | n/a |
| ||||||
| Apple | watchOS | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.92% (0.00915) | 58.69th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.92% (0.00915) | 55.29th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.42% (0.00424) | 60.11th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.14% (0.00144) | 51.84th | v3 (v2023.03.01) |
| Jul 3, 2024 | 0.11% (0.00112) | 44.87th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.10% (0.00102) | 41.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00061) | 24.05th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.24% (0.01237) | 67.39th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.24% (0.01237) | 41.05th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.32% (0.00324) | 2.86th | v5 (v2026.06.15) |
| Jan 6, 2022 | 0.32% (0.00324) | 2.89th | v1 |
| Dec 24, 2021 | 2.18% (0.02177) | 78.04th | v1 |
References (5)
- https://support.apple.com/en-us/HT208112 x_refsource_MISCVendor Advisory
- https://support.apple.com/en-us/HT208115 x_refsource_MISCVendor Advisory
- https://support.apple.com/en-us/HT208141 x_refsource_MISCVendor Advisory
- https://support.apple.com/en-us/HT208142 x_refsource_MISCVendor Advisory
- https://support.apple.com/en-us/HT208144 x_refsource_MISCVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://support.apple.com/en-us/HT208112 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/en-us/HT208115 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/en-us/HT208141 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/en-us/HT208142 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/en-us/HT208144 | x_refsource_MISCVendor Advisory |
Change history (0)
No recorded changes yet.