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CVE-2026-43788

MEDIUM 6.6 ALL-YEARS

Published 2026-09-14 · Last modified 2026-09-15 · apple · NVD: Analyzed

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.

LIMITED SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.1%chance of exploitation in 30 days · 4th percentile

○ In CISA KEV○ Public exploit / PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

6.6CVSS 3.1 · MEDIUM · ADP

  • ConfidentialityHigh
  • IntegrityNone
  • AvailabilityHigh

What an attacker needs

  • ⚠Access: Requires local access to the host
  • ⚠Privileges: Requires a low-privilege account
  • ⚠User interaction: A user must take an action (click / open a file)
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

No public exploit or proof-of-concept code is catalogued for this CVE (no ExploitDB, Nuclei, or CISA-KEV entry). It may still exist — search GitHub or check the references below.

Affected

Vendors Apple

Products Macos

Weakness (CWE)

  • CWE-190: Integer Overflow or Wraparound

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

Known Affected Software Configurations

VendorProductVersion range
AppleMacos< 27.0

All CVSS metrics

  • MEDIUM 6.6 v3.1 · ADP Primary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H
  • MEDIUM 6.6 v3.1 · NVD Secondary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

References

Advisories

Sources: NVD · CVE.org · EPSS