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Exploited vulnerability · CISA KEV

Is CVE-2026-86950 exploited? Yes: in CISA KEV since 29 Sep 2026

Gociux · Apple Multiple Products · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2026-86950, Apple Multiple Products Out-of-Bounds Write Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 29 Sep 2026, 1 days after it was published. It affects Apple Multiple Products. If you run it, CISA's required action is: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

exploitedYesCISA KEV · 29 Sep 2026
ransomwareNot knownno confirmed use
EPSStop 5%very likely to be exploited
severity8.8CVSS 3.1 · high
US federal due13 Oct 2026BOD 22-01 deadline

What it is

Apple iOS, macOS, and iPadOS contain an out-of-bounds write vulnerability in CoreGraphics that may lead to arbitrary code execution.

VendorApple (96 exploited CVEs in KEV)
ProductMultiple Products
VulnerabilityApple Multiple Products Out-of-Bounds Write Vulnerability
WeaknessCWE-787
Published28 Sep 2026
Added to KEV29 Sep 2026
Reported by (CNA)apple

What to do

  1. Check whether you run it. Look for Multiple Products in your asset inventory, including appliances and cloud images. Stack check lists every exploited Apple CVE at once.
  2. Apply the fix. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 28 Sep 2026.
  4. Get told next time. Email alerts when CISA adds a CVE for Apple.

Other exploited CVEs in Multiple Products

References

Questions

Is CVE-2026-86950 being exploited?

Yes. CISA added CVE-2026-86950 to the Known Exploited Vulnerabilities catalog on 29 Sep 2026, which means there is reliable evidence of exploitation in the wild.

Is CVE-2026-86950 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2026-86950?

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. Check Apple's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Multiple Products and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in September 2026 · Apple scorecard · act-now radar.

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