CVE-2026-43677CWE-787

CVE-2026-43677

Medium · published September 15, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
33.5
In the wild
Unconfirmed
What it is

An out-of-bounds write issue was addressed by removing the vulnerable code. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious WebDAV server may lead to unexpected app termination.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00404 · 33.5th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-09-15T01:17Z
Affected products (2)
ProductVersionsFixed in
apple/macos≥ 15.0, < 15.815.8
apple/macos≥ 26.0, < 26.726.7
References (3)
https://support.apple.com/en-us/149035 · [email protected]https://support.apple.com/en-us/149042 · [email protected]https://support.apple.com/en-us/149043 · [email protected]
EPSS history
Timeline
  • 16 SEP 04:27Z
    EPSS moved — → 0%
    epss
  • 14 SEP 20:49Z
    An out-of-bounds write issue was addressed by removing the vulnerable code
    cvelistv5