CVE-2026-28863

A permissions issue was addressed with additional restrictions. This issue is fixed in iOS 26.4 and iPadOS 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. An app may be able to fingerprint the user.

Published: 2026-03-25 Last update: 2026-05-10 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2026-28863 is rated Low Risk (26.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.01%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-28863

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-25 0.01%

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-28863

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
2.8 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2026-28863

GitHub Security Advisory for CVE-2026-28863

GHSA-9q9v-gcpr-jqgv · Severity: medium — A permissions issue was addressed with additional restrictions. This issue is fixed in iOS 26.4...

Affected software / configurations for CVE-2026-28863

Vendor Product Version Raw CPE
apple ipados < 26.4 cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
apple iphone_os < 26.4 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple tvos < 26.4 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
apple visionos < 26.4 cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*
apple watchos < 26.4 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*

References for CVE-2026-28863

cvelogic Threat Intelligence