CVE-2019-8520
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS...
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Mojave 10.14.4. A malicious application may be able to read restricted memory.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Mojave 10.14.4. A malicious application may be able to read restricted memory.
- Record
CVE-2019-8520- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Mojave 10.14.4. A malicious application may be able to read restricted memory.
- Record
CVE-2019-8520- Updated
- 2026-11-02
EUVDEUVD-2019-17910 No score
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Mojave 10.14.4. A malicious application may be able to read restricted memory.
- Record
EUVD-2019-17910- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3chr-56pg-h55f No score
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS...
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Mojave 10.14.4. A malicious application may be able to read restricted memory.
- Record
GHSA-3chr-56pg-h55f- 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-2019-8520 is a medium vulnerability (CVSS 5.5) in Apple Macos, published December 18, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.31%, the 24th percentile. No source names a fixed version.