CVE-2022-32893: Apple iOS and macOS Out-of-Bounds Write Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 18 Aug 2022, 6 days before the CVE record was published.
- How likely is exploitation in the next 30 days?
- 9.9%
EPSS score, percentile 95.6 of all scored records
- How severe?
- 8.8 High
CVSS v3.1 base score, from CISA's enrichment of the record
- What should I do?
Required action (CISA), due 8 Sep 2022: Apply updates per vendor instructions.
- Which versions are affected?
Affected: before 15.6; before 15.6; before 12.5
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply updates per vendor instructions.
CISA due date for this action: 8 September 2022.
Advisories and patches
Linked from CISA's catalog entry
- https://support.apple.com/en-gb/HT213412
- https://support.apple.com/en-gb/HT213413
- https://nvd.nist.gov/vuln/detail/CVE-2022-32893
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | before 15.6 |
| Status | Versions |
|---|---|
| Affected | before 15.6 |
| Status | Versions |
|---|---|
| Affected | before 12.5 |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
Apple iOS and macOS contain an out-of-bounds write vulnerability that could allow for remote code execution when processing malicious crafted web content.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2022-32893 to its Known Exploited Vulnerabilities (KEV) catalog on 18 Aug 2022.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 8 Sep 2022.
- The CVE record was published on 24 Aug 2022, 6 days after it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 8.8 (High), taken from CISA's enrichment of the record.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 9.9% (percentile 95.6), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.6.1 and iPadOS 15.6.1, macOS Monterey 12.5.1, Safari 15.6.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 18 Aug 2022 | Added to CISA KEV |
| 24 Aug 2022 | CVE record published |
| 8 Sep 2022 | CISA due date for the required action |
| 21 Oct 2025 | CVE record last updated |
References
- support.apple.com
- support.apple.com
- support.apple.com
- [oss-security] 20220825 WebKitGTK and WPE WebKit Security Advisory WSA-2022-0008
- [oss-security] 20220826 Re: WebKitGTK and WPE WebKit Security Advisory WSA-2022-0008
- [oss-security] 20220829 Re: WebKitGTK and WPE WebKit Security Advisory WSA-2022-0008
- [oss-security] 20220829 Re: WebKitGTK and WPE WebKit Security Advisory WSA-2022-0008
5 more in the CVE record.
More exploited Apple vulnerabilities
- CVE-2026-86950: Apple Multiple Products Out-of-Bounds Write Vulnerability
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- CVE-2025-31277: Apple Multiple Products Buffer Overflow Vulnerability
- CVE-2025-43510: Apple Multiple Products Improper Locking Vulnerability
- CVE-2025-43520: Apple Multiple Products Classic Buffer Overflow Vulnerability
- CVE-2021-30952: Apple Multiple Products Integer Overflow or Wraparound Vulnerability