CVE-2016-4639
Login Window in Apple OS X before 10.11.6 does not properly initialize memory, which allows local...
Login Window in Apple OS X before 10.11.6 does not properly initialize memory, which allows local users to cause a denial of service via unspecified vectors.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Login Window in Apple OS X before 10.11.6 does not properly initialize memory, which allows local users to cause a denial of service via unspecified vectors.
- Record
CVE-2016-4639- CVSS 3.0
- 7.0 High
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.4 Medium
AV:L/AC:M/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Login Window in Apple OS X before 10.11.6 does not properly initialize memory, which allows local users to cause a denial of service via unspecified vectors.
- Record
CVE-2016-4639- Updated
- 2026-11-02
EUVDEUVD-2016-5625 No score
Login Window in Apple OS X before 10.11.6 does not properly initialize memory, which allows local users to cause a denial of service via unspecified vectors.
- Record
EUVD-2016-5625- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9q7j-mcc2-2993
Login Window in Apple OS X before 10.11.6 does not properly initialize memory, which allows local...
Login Window in Apple OS X before 10.11.6 does not properly initialize memory, which allows local users to cause a denial of service via unspecified vectors.
- Record
GHSA-9q7j-mcc2-2993- CVSS 3.0
- 7.0 High
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2016-4639 is a high vulnerability (CVSS 7.0) in Apple Mac Os X, published July 22, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 22nd percentile. No source names a fixed version.