CVE-2026-65384
Apple Macos: out-of-bounds read
- Risk score
- 53/100
- CVSS
- 7.5 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 26 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27.2. A remote attacker may cause an unexpected process termination.
- Affected
- Apple Macos
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Story map
At a glance
Apple Macos: Red, act today. An authentication issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.7.9, macOS Sonoma 14.8.9, macOS Tahoe 26.6.1, macOS Tahoe 26.7. An attacker on the network may be able to authenticate to Screen Sharing without valid credentials.
The flaws
- CVE-2026-65384: Out-of-bounds read (CVSS 7.5 · EPSS 0%)
- CVE-2026-65400: Apple macOS Improper Authentication Vulnerability (CVSS 9.8 · exploited)
- CVE-2026-112526: Buffer overflow (CVSS 9.8 · EPSS 1%)
- CVE-2026-86868: Authentication bypass (CVSS 9.1 · EPSS 0%)
The fix
Fix: Apply the vendor's security update; see the linked advisory.
Who is exposed: Apple Macos
Where it stands
- Exploited in the wild
- On CISA's exploited list since 18 Aug
- US federal deadline 21 Aug
How it unfolded
- 18 Aug, CISA (official): Added to the Known Exploited Vulnerabilities list
- 21 Aug, Deadline (official): US federal agencies must have patched
Connects to
- Same weakness: Out-of-bounds read (CWE-125). 400 other warnings in 30 days
- Same product: Earlier Apple Macos warnings. 118 in the last 90 days
Why it is Yellow
- CVSS 7.5 high
- Remotely exploitable without logging in
References
Original description
An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27.2. A remote attacker may cause an unexpected process termination.
Last activity 26 Oct 2026. Patch Forecast updates every hour.