Skip to main content

Apple macOS CVE-2026-43788

| EUVDEUVD-2026-77917 MEDIUM
Integer Overflow or Wraparound (CWE-190)
2026-09-14 apple GHSA-8624-hc38-mw7x
6.6
CVSS 3.1 · Vendor: apple
Share

Severity by source

Vendor (apple) PRIMARY
6.6 MEDIUM
AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H
vuln.today AI
6.1 MEDIUM

Local malicious-file processing needs victim interaction (AV:L/UI:R) but no attacker privileges (PR:N); confirmed impact is DoS (A:H) with only potential partial memory leak (C:L), no integrity.

3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (apple).

CVSS VectorVendor: apple

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

Lifecycle Timeline

5
Analysis Generated
Sep 15, 2026 - 16:22 vuln.today
CVSS changed
Sep 15, 2026 - 16:22 NVD
6.6 (MEDIUM)
Patch available
Sep 14, 2026 - 22:19 EUVD
CVE Published
Sep 14, 2026 - 20:50 cve.org
MEDIUM 6.6
CVE Published
Sep 14, 2026 - 20:50 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27. Processing a maliciously crafted file may lead to a denial-of-service or potentially disclose memory contents.

AnalysisAI

Processing a maliciously crafted file on Apple macOS versions below Golden Gate 27 can crash the affected component, causing a denial-of-service, and may potentially leak partial memory contents. The bug is an integer overflow (CWE-190) corrected through improved input validation, and exploitation requires a local victim to actually open or handle the attacker-supplied file, so both a local attack vector and user interaction are prerequisites. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation Exploitation requires a local victim on an affected macOS version (any build below macOS Golden Gate 27) to open or process an attacker-supplied, maliciously crafted file - the mandatory user interaction (UI:R) and local attack vector (AV:L) are the primary limiting factors. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a moderate-severity local issue, not a high-priority emergency. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: macOS Golden Gate 27 - upgrading to this version (or any later release) resolves the integer overflow through Apple's improved input validation, and the change is documented at https://support.apple.com/en-us/149035. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

Share

CVE-2026-43788 vulnerability details – vuln.today

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy