Vulnerability details
CVE-2026-43793
Apple macOS
CVSS 3.1
9.8Critical
Official description
An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apple | macOS | v < 14.8.8 | CVEProject cvelistV5 (CNA) |
| Apple | macOS | v < 15.7.8 | CVEProject cvelistV5 (CNA) |
| Apple | macOS | v < 26.6 | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2026-07-27
- Last updated
- 2026-07-28
- State
- Published
- Assigner (CNA)
- apple
Exploit prediction (EPSS)
0.58%
Probability of exploitation in 30 days
48.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-20Improper Input Validation