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No exploitation reportedFix available

CVE-2026-84604

Stack Buffer Overflow in macOS Audit File Processing

No exploitation reported by the sources we read.

  • Published2026-10-26
  • Fixed in26.7.2 · 15.8.2
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A stack buffer overflow was addressed through improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted audit file may corrupt process memory.

Timeline

dates in UTC
  1. 2026-10-2621:20CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-02 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-84604?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-84604?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Apple macos
BranchAffectedFixed in
26.x≥ 26.0, < 26.7.226.7.2
15.x≥ 15.0, < 15.8.215.8.2

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Apple macos to 26.7.2 · 15.8.2

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2026-10-26
Last Modified
2026-11-02
NVD status
Analyzed
GitHub Advisory
GHSA-m9hv-8q92-9g3h

Frequently asked questions

What is CVE-2026-84604?

A stack buffer overflow was addressed through improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted audit file may corrupt process memory.

Is CVE-2026-84604 actively exploited?

Active exploitation of CVE-2026-84604 has not been confirmed. Its EPSS score was 0.2% on 2026-11-02, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-84604?

CVE-2026-84604 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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