CVE-2020-9818 KEV
8.8
HIGH · CVSS 3.1 · EPSS 2.3% (pctl 83)
Patch first
On CISA KEV — known exploited in the wild, due 2022-05-03.
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5. Processing a maliciously crafted mail message may lead to unexpected memory modification or application termination.
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 2.29% — more likely to be exploited than 83% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | yes — remediate by 2022-05-03 |
| Public exploit | none known |
| Published | 2020-06-09 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Apple iOS, iPadOS, and watchOS Out-of-Bounds Write Vulnerability |
|---|---|
| Added | 2021-11-03 |
| Due | 2022-05-03 |
| Vendor / product | Apple / iOS, iPadOS, and watchOS |
| Ransomware use | none reported |
Affected (3)
| Vendor | Product |
|---|---|
| apple | ipados |
| apple | iphone os |
| apple | watchos |
References
→ the Explorer · watch your stack · NVD