CISA adds Apple out-of-bounds write CVE-2026-86950 to KEV catalog on evidence of active exploitation
CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-09-29, citing evidence of active exploitation: CVE-2026-86950, an out-of-bounds write flaw affecting multiple Apple products. CISA describes this vulnerability type as a frequent attack vector for malicious cyber actors and a significant risk to the federal enterprise. The alert gives no technical details, exploitation specifics, affected versions or attribution.
The alert also references BOD 26-04, which requires FCEB agencies to prioritize rapid remediation of KEV-listed CVEs on publicly exposed assets that grant total control after exploitation. It further sets expectations for checking whether threat actors compromised a system before the patch was applied. CISA encourages all organizations to adopt risk-based vulnerability management and prioritize KEV remediation.
Technical Details
- CVE-2026-86950: Apple multiple products, out-of-bounds write vulnerability.
- The article does not name affected versions, exploitation methods, IOCs or threat actors.
Remediation
- Prioritize remediation of CVE-2026-86950 on affected Apple devices and software.
- Consult the Apple vendor advisory for affected products, versions and patches; the CISA alert does not list them.
- Per BOD 26-04, check whether systems were compromised before the patch was applied.
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CISA adds Apple out-of-bounds write CVE-2026-86950 to KEV catalog on evidence of active exploitation
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CISA added one vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog on 2026-09-29, citing evidence of active exploitation: CVE-2026-86950, an out-of-bounds write flaw affecting multiple Apple products. CISA describes this vulnerability type as a frequent attack vector for malicious cyber actors and a significant risk to the federal enterprise. The alert gives no technical details, exploitation specifics, affected versions or attribution.
The alert also references BOD 26-04, which requires FCEB agencies to prioritize rapid remediation of KEV-listed CVEs on publicly exposed assets that grant total control after exploitation. It further sets expectations for checking whether threat actors compromised a system before the patch was applied. CISA encourages all organizations to adopt risk-based vulnerability management and prioritize KEV remediation.
Technical Details
- CVE-2026-86950: Apple multiple products, out-of-bounds write vulnerability.
- The article does not name affected versions, exploitation methods, IOCs or threat actors.
Remediation
- Prioritize remediation of CVE-2026-86950 on affected Apple devices and software.
- Consult the Apple vendor advisory for affected products, versions and patches; the CISA alert does not list them.
- Per BOD 26-04, check whether systems were compromised before the patch was applied.