Is CVE-2022-48618 (Apple Multiple Products Memory Corruption) being exploited in the wild?

By NHI Mgmt Group Editorial Team Updated October 19, 2026 Domain: Threats, Abuse & Incident Response

Yes. CISA added CVE-2022-48618 to its Known Exploited Vulnerabilities catalogue on 31 January 2024, which it does only when there is reliable evidence of active exploitation. CISA has not linked it to known ransomware campaigns. Apple iOS, iPadOS, macOS, tvOS, and watchOS contain a time-of-check/time-of-use (TOCTOU) memory corruption vulnerability that allows an attacker with read and write capabilities to bypass Pointer Authentication.

What “exploited in the wild” means for this CVE

For this Apple memory corruption issue, “exploited in the wild” means the vulnerability was not just theoretical or proof-of-concept only. CISA’s KEV listing is the practical signal to trust here, because it is reserved for vulnerabilities with reliable evidence of active exploitation. That makes the question about operational reality, not vendor speculation.

The important takeaway is that KEV status changes the response posture. Once a flaw is publicly tracked as actively exploited, teams should treat exposure as current, verify whether any vulnerable Apple endpoints exist, and assume the issue may already have been used against unpatched or delayed systems.

Apple’s advisory details matter for scoping the technical exposure, but the KEV listing is the stronger indicator for exploitation status. Use the vendor advisory and the CISA Known Exploited Vulnerabilities Catalog to confirm the exact product coverage and required remediation path rather than relying on secondary summaries.

Why this kind of memory corruption is operationally serious

Apple describes the issue as a time-of-check/time-of-use memory corruption flaw that can let an attacker with read and write capabilities bypass Pointer Authentication. That is not a routine nuisance bug. It is the sort of weakness that can collapse assumptions about memory safety and allow abuse of trusted execution paths on devices that are otherwise well defended.

Because the affected platform family spans iOS, iPadOS, macOS, tvOS, and watchOS, the real risk is breadth of exposure across a mixed device estate. NIST National Vulnerability Database is useful for cross-checking record metadata, while the CVE Program helps maintain a clean identifier trail when you are reconciling asset intelligence, scanners, and vendor advisories.

What to do when patching cannot happen immediately

When a vulnerability has already been observed in active exploitation, delaying remediation needs a compensating-control plan, not a passive wait. Prioritise asset discovery, exposure confirmation, and any available vendor mitigation first, then narrow access to the affected devices or workflows until patching is complete.

If remediation must wait, focus on reducing the chance that a compromised device can be used for broader access. That means tighter monitoring, stronger segmentation, and attention to privileged sessions, managed endpoints, and high-value user populations that may be attractive targets. FIRST EPSS can help as a triage input, but for a KEV-listed issue it should support prioritisation rather than replace urgent remediation.

Risk and Threat Considerations

This vulnerability is high-risk because active exploitation means the control failure is already weaponised, not merely possible. The combination of memory corruption and a bypass of Pointer Authentication raises the chance that attackers can turn a single initial foothold into deeper device compromise or follow-on abuse.

Failure mechanism: The flaw hinges on a TOCTOU condition that can let an attacker influence memory state between validation and use, undermining pointer-authentication-based protection and enabling malicious read-write abuse.

Impact: The practical impact is device compromise risk across major Apple operating systems, with possible loss of confidentiality, integrity, and trust in local execution paths, especially if the device is used for privileged work or stores sensitive session material.

Standards & Framework Alignment

This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.

CIS Controls v8, NIST CSF 2.0 and NIST SP 800-53 Rev 5 set the governance and control requirements practitioners need to meet.

Framework	Control / Reference	Relevance
CIS Controls v8	CIS-7 — Continuous Vulnerability Management	KEV-listed CVEs demand prioritised identification and remediation of exposed assets.
Recommendation — Prioritise, remediate, and verify exposure for KEV-listed vulnerabilities on Apple endpoints.
NIST CSF 2.0	ID.RA-01 — Asset Vulnerabilities Are Identified and Recorded	This question turns on confirming exposure to an actively exploited vulnerability.
	RS.MA-01 — Mitigation Is Executed	Active exploitation requires prompt mitigation and containment, not passive tracking.
Recommendation — Identify affected Apple assets and record them in your risk register and remediation queue. Execute containment and remediation actions as soon as KEV exposure is confirmed.
NIST SP 800-53 Rev 5	RA-5 — Vulnerability Monitoring and Scanning	You need authoritative exposure checks and ongoing verification for the Apple flaw.
	SI-2 — Flaw Remediation	An actively exploited memory corruption flaw requires prompt flaw remediation and verification.
Recommendation — Scan, track, and verify remediation for vulnerable Apple products. Remediate the Apple vulnerability promptly and confirm the fix is deployed.

Practitioner Guidance

What to prioritise: Confirm whether any Apple endpoints in your estate are affected, then rank them by exposure and business criticality. Internet-facing or high-value user devices should be treated as urgent, even if you have not yet seen suspicious telemetry.

What to verify: Validate patch status directly from endpoint management or configuration data, not from user reports. Also check whether any device shows signs of anomalous process behavior, unexpected browser or app crashes, or unusual privilege-seeking activity that could suggest pre-patch compromise.

Decision rule: If you cannot patch immediately, treat the affected devices as potentially compromised until evidence says otherwise, and increase monitoring around authentication events, session anomalies, and lateral-movement indicators that would follow from a successful endpoint exploit.

Practitioner takeaway: For a KEV-listed Apple memory corruption issue, the right question is not whether exploitation is plausible, but whether you have already reduced exposure enough to assume compromise is contained until patching is complete.

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NHIMG Editorial Note
Reviewed and updated by the NHIMG editorial team on October 19, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org