Vulnerability details
CVE-2026-28857
Apple SafariApple iOS and iPadOSApple macOSApple visionOS
CVSS 3.1
8.8High
Official description
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 6.5Medium | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (redhat-SADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apple | Safari | v < 26.4 | CVEProject cvelistV5 (CNA) |
| Apple | iOS and iPadOS | v < 26.4 | CVEProject cvelistV5 (CNA) |
| Apple | macOS | v < 26.4 | CVEProject cvelistV5 (CNA) |
| Apple | visionOS | v < 26.4 | CVEProject cvelistV5 (CNA) |
References and advisories
18- https://support.apple.com/en-us/126792
- https://support.apple.com/en-us/126794
- https://support.apple.com/en-us/126799
- https://support.apple.com/en-us/126800
- https://access.redhat.com/security/cve/CVE-2026-28857 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2453004 issue-trackingx_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28857.json x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:22136 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:10702 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:16056 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:13845 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:11814 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19535 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:16695 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:14659 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:11329 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:9692 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19206 vendor-advisoryx_refsource_REDHAT
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Details
- Published
- 2026-03-25
- Last updated
- 2026-07-15
- State
- Published
- Assigner (CNA)
- apple
Exploit prediction (EPSS)
0.67%
Probability of exploitation in 30 days
52.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-125Out-of-bounds Read
- CWE-787Out-of-bounds Write
- CWE-416Use After Free
- CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')