HIGH
An out-of-bounds write issue was addressed with improved bounds checking
Published Oct 22, 2020
7.8
HIGHCVSS 3.1
EPSS 1.95%
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, iCloud for Windows 7.20. Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<iCloud for Windows 11.3
- Version
-
- Version unspecifiedStatusaffectedConstraints<iCloud for Windows 7.20
- Version
-
- Version unspecifiedStatusaffectedConstraints<iOS 13.6 and iPadOS 13.6
- Version
-
- Version unspecifiedStatusaffectedConstraints<iTunes 12.10.8 for Windows
- Version
-
- Version unspecifiedStatusaffectedConstraints<macOS Catalina 10.15.6
- Version
-
- Version unspecifiedStatusaffectedConstraints<tvOS 13.4.8
- Version
-
- Version unspecifiedStatusaffectedConstraints<watchOS 6.2.8
- 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 | iCloud for Windows (Legacy) | n/a |
| ||||||
| Apple | iOS | n/a |
| ||||||
| Apple | iTunes for Windows | n/a |
| ||||||
| Apple | macOS | n/a |
| ||||||
| Apple | tvOS | n/a |
| ||||||
| Apple | watchOS | n/a |
|
OR
- < 7.20
- ≥ 10.0 · < 11.5
- < 12.10.9
- < 14.0
- < 14.0
- ≥ 10.13 · < 10.13.6
- ≥ 10.14 · < 10.14.6
- ≥ 10.15 · < 10.15.6
- 10.13.6
- 10.13.6
- 10.13.6
- 10.13.6
- 10.13.6
- 10.13.6
- 10.13.6
- 10.13.6
- 10.13.6
- 10.13.6
- 10.13.6
- 10.13.6
- 10.13.6
- 10.14.6
- 10.14.6
- 10.14.6
- 10.14.6
- 10.14.6
- 10.14.6
- 10.14.6
- 10.14.6
- 10.14.6
- 10.14.6
- ≥ 11.0 · ≤ 11.0.1
- < 14.0
- < 7.0
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.
7.8 HIGH NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
6.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.95% 0.01951
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.01951
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.95% (0.01951) | 79.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.95% (0.01946) | 77.48th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.21% (0.01207) | 77.09th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.27% (0.03270) | 78.42th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.17% (0.00166) | 53.74th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.17% (0.00166) | 52.71th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00108) | 42.03th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.89% (0.01889) | 77.37th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.89% (0.01889) | 75.37th | v2 (v2022.01.01) |
| Mar 31, 2022 | 4.96% (0.04955) | 75.45th | v2 (v2022.01.01) |
| Jan 6, 2022 | 4.23% (0.04228) | 73.90th | v1 |
| Jan 5, 2022 | 0.97% (0.00974) | 62.16th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.97% (0.00974) | 0.00th | v1 |
Weaknesses (1)
References (17)
- http://seclists.org/fulldisclosure/2020/Dec/32 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/19 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/20 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- http://seclists.org/fulldisclosure/2020/Nov/22 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- https://support.apple.com/kb/HT211288 x_refsource_MISCVendor Advisory
- https://support.apple.com/kb/HT211289 x_refsource_MISCVendor Advisory
- https://support.apple.com/kb/HT211290 x_refsource_MISCVendor Advisory
- https://support.apple.com/kb/HT211291 x_refsource_MISCVendor Advisory
- https://support.apple.com/kb/HT211293 x_refsource_MISCVendor Advisory
- https://support.apple.com/kb/HT211294 x_refsource_MISCVendor Advisory
- https://support.apple.com/kb/HT211295 x_refsource_MISCVendor Advisory
- https://support.apple.com/kb/HT211843 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/kb/HT211844 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/kb/HT211850 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/kb/HT211931 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/kb/HT211935 x_refsource_CONFIRMVendor Advisory
- https://support.apple.com/kb/HT211952 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/fulldisclosure/2020/Dec/32 | mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory | |
| http://seclists.org/fulldisclosure/2020/Nov/19 | mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory | |
| http://seclists.org/fulldisclosure/2020/Nov/20 | mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory | |
| http://seclists.org/fulldisclosure/2020/Nov/22 | mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory | |
| https://support.apple.com/kb/HT211288 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/kb/HT211289 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/kb/HT211290 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/kb/HT211291 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/kb/HT211293 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/kb/HT211294 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/kb/HT211295 | x_refsource_MISCVendor Advisory | |
| https://support.apple.com/kb/HT211843 | x_refsource_CONFIRMVendor Advisory | |
| https://support.apple.com/kb/HT211844 | x_refsource_CONFIRMVendor Advisory | |
| https://support.apple.com/kb/HT211850 | x_refsource_CONFIRMVendor Advisory | |
| https://support.apple.com/kb/HT211931 | x_refsource_CONFIRMVendor Advisory | |
| https://support.apple.com/kb/HT211935 | x_refsource_CONFIRMVendor Advisory | |
| https://support.apple.com/kb/HT211952 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner apple
Published Oct 22, 2020
Updated Aug 4, 2024
Reserved Mar 2, 2020
Link CVE-2020-9876
CISA Vulnrichment
Updated n/a