Cyber Resilience

CVE-2026-28955

HighUpdated

Published: 11 May 2026

Published
11 May 2026
Modified
30 June 2026
KEV Added
Patch
CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0069 48.3th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-28955 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Apple Ipados. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 48.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may…

more

lead to an unexpected process crash.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1189 Drive-by Compromise Initial Access
Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.
Why these techniques?

Browser memory vulnerability (CWE-119) triggered by crafted web content enables client-side exploitation and drive-by attacks.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2025-31277Same product: Apple Ipados
CVE-2025-31278Same product: Apple Ipados
CVE-2025-31273Same product: Apple Ipados
CVE-2026-43658Same product: Apple Ipados
CVE-2025-43186Same product: Apple Ipados
CVE-2026-28904Same product: Apple Ipados
CVE-2026-28990Same product: Apple Ipados
CVE-2026-28940Same product: Apple Ipados
CVE-2026-28905Same product: Apple Ipados
CVE-2024-27859Same product: Apple Ipados

Affected Assets

apple
ipados
≤ 18.7.9 · 26.0 — 26.5
apple
iphone os
≤ 18.7.9 · 26.0 — 26.5
apple
macos
26.0 — 26.5
apple
tvos
≤ 26.5
apple
visionos
≤ 26.5
apple
watchos
≤ 26.5

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-119 CWE-120

Managed runtimes used by platform-independent applications (e.g., JVM, CLR) enforce memory safety, preventing most buffer overflows that require direct memory manipulation.

addresses: CWE-119

Ongoing control assessments and code testing (static/dynamic analysis, fuzzing) surface memory buffer restriction failures, which are then remediated before release.

addresses: CWE-119

Memory protections (e.g., W^X, ASLR) make exploitation of buffer-boundary violations far harder to turn into code execution.

addresses: CWE-119

Detects exploitation attempts that produce memory corruption, crashes, or anomalous behavior.

References