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Vulnerabilities

Security fix · CVE-2026-86919

A stack overflow was addressed with improved input validation.

Published Oct 20, 2026 · catalog updated Oct 21, 2026 · A stack overflow was

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-86919. EPSS is 0.39%. Act only if a listed version of A stack overflow was is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A stack overflow was).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.39%
Remediation
Not established
Affected products
See sources for product scope

A stack overflow was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An attacker with a paired Bluetooth device may be able to execute arbitrary code.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-86919

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-86919. EPSS is 0.39%. Act only if a listed version of A stack overflow was is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-121: Stack-based Buffer Overflow. EPSS 0.39%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 20, 2026 · NIST NVD

    Detected

    A stack overflow was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An attacker with a paired Bluetooth device may be able to execute arbitrary code.

  2. Oct 20, 2026 · NIST NVD

    Updated

    A stack overflow was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An attacker with a paired Bluetooth device may be able to execute arbitrary code.

  3. Oct 20, 2026 · NIST NVD

    Updated

    A stack overflow was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An attacker with a paired Bluetooth device may be able to execute arbitrary code.

  4. Oct 21, 2026 · NIST NVD

    Updated

    A stack overflow was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An attacker with a paired Bluetooth device may be able to execute arbitrary code.

Sources

  • BSI CERT-BundGovernment advisoryCVE-2026-86919

    Apple iOS, iPadOS, macOS Tahoe, macOS Golden Gate, macOS Sequoia und Safari: Mehrere Schwachstellen

    wid.cert-bund.de
  • CVE.orgVulnerability recordCVE-2026-86919

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-86919

    30-day exploitation probability 0.39%

    first.org
  • NIST NVDVulnerability recordCVE-2026-86919

    A stack overflow was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An attacker with a paired Bluetooth device may be able to execute arbitra

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 28, 2026
  • BSI CERT-BundOct 27, 2026
  • CVE.orgOct 21, 2026
  • NIST NVDOct 21, 2026