CVE-2026-43815: Connecting to a malicious afpfs server may lead to kernel memory corruption in Apple macOS
A buffer overflow vulnerability in Apple macOS's afpfs client could lead to kernel memory corruption when connecting to a malicious afpfs server. This issue has been fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Versions prior to these releases are affected.
AI Analysis
Technical Summary
CVE-2026-43815 is a vulnerability in Apple macOS where connecting to a malicious afpfs server may cause kernel memory corruption due to a buffer overflow. The vulnerability was addressed by improving bounds checking in the affected component. The issue is resolved in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6.
Potential Impact
Successful exploitation of this vulnerability could lead to kernel memory corruption, which may cause system instability or potentially allow an attacker to execute arbitrary code with kernel privileges. However, there are no known exploits in the wild at this time.
Mitigation Recommendations
Apply the official fixes by updating macOS to Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.6. These updates include improved bounds checking that address the buffer overflow vulnerability. No other mitigations are indicated.
CVE-2026-43815: Connecting to a malicious afpfs server may lead to kernel memory corruption in Apple macOS
Description
A buffer overflow vulnerability in Apple macOS's afpfs client could lead to kernel memory corruption when connecting to a malicious afpfs server. This issue has been fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Versions prior to these releases are affected.
Affected software
Apple
macOS
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-43815 is a vulnerability in Apple macOS where connecting to a malicious afpfs server may cause kernel memory corruption due to a buffer overflow. The vulnerability was addressed by improving bounds checking in the affected component. The issue is resolved in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6.
Potential Impact
Successful exploitation of this vulnerability could lead to kernel memory corruption, which may cause system instability or potentially allow an attacker to execute arbitrary code with kernel privileges. However, there are no known exploits in the wild at this time.
Mitigation Recommendations
Apply the official fixes by updating macOS to Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.6. These updates include improved bounds checking that address the buffer overflow vulnerability. No other mitigations are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:27.821Z
- State
- PUBLISHED
Threat ID: 6aa860f555bf5e2cf59d23b5
Added to database: 09/14/2026, 21:02:45 UTC
Last enriched: 09/14/2026, 22:24:58 UTC
Last updated: 09/15/2026, 05:01:22 UTC
Views: 3
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