Threats / Apple / CVE-2025-43510
CVE-2025-43510
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-09-19
Apple Multiple Products vulnerability
Apple's watchOS, iOS, iPadOS, macOS, visionOS, and tvOS contain an improper locking vulnerability allowing malicious applications to cause unexpected changes in inter-process shared memory.
Verdict
Today item — known-exploited.
A local attacker with application execution capability can exploit improper synchronization to corrupt or manipulate shared memory regions, potentially affecting system stability, data integrity, or enabling privilege escalation within the affected operating systems.
CISA KEV Yes · 2026-03-204EPSS 0.00355 (verify live)5CVSS 7.8 (CISA)3CISA SSVC Exploitation: active · Automatable: no · Impact: total3
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
5 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-03-20).
Probability (EPSS)
EPSS 0.00355 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 7.8 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) · Affected: Apple, Multiple Products. Confirm exact fixed builds in the vendor advisory.CVSS — CISA-assigned via the ADP container (CVE.org), version 3.1; the CNA left no metrics, so CISA's own score is used ahead of NVD.
Weakness (CWE)
Mapped to CWE-667 CWE-667.CWE assignment from the public NVD record (may be stale); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: no · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 98 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
WeaknessCWE-667 · CWE-667
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I install a malicious application on the target device that gains execution context within the operating system.
Business
User device security is compromised by a locally-installed application with access to system resources.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I exploit the improper locking mechanism to access and modify memory regions shared between multiple processes without proper synchronization.
Business
Data integrity across system processes is compromised, potentially affecting multiple applications and system services simultaneously.
3
Lateral reach — past segmentation narrative 3
Attacker
I cause unexpected state changes in shared memory to trigger unintended behavior in other processes or escalate my application's privileges.
Business
System stability degrades and confidentiality or availability of user data and services is at risk across the affected device ecosystem.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05
Coverage & confidence
— what we know, and what we don’tEstablished (cited)
Coverage gaps — stated, not hidden
Disclosure & credit2
Catalogued by appleCNA
Credited with finding itNo finder is named in the public CVE record or the scanned vendor advisory — attribution scoped to the sources checked.
Found an error? Propose a correction.
A correction is a cited counter-claim — it must cite a source,
gets reviewed by a second human, and is never auto-applied. See the
correction convention and our identity
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