How severe is CVE-2016-1851?

CVE-2016-1851 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2016-1851 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1851?

CVE-2016-1851 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-1851?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-1851 published?

CVE-2016-1851 was published on 2016-05-20 and last updated on 2026-06-17.

CVE-2016-1851

CVE-2016-1851 is a medium-severity vulnerability in Apple Mac Os X with a CVSS 3.x base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
CVSS v2: 2.1
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apple Mac Os X
Published: 2016-05-20
Last modified: 2026-06-17

Description

The Screen Lock feature in Apple OS X before 10.11.5 mishandles password profiles, which allows physically proximate attackers to reset expired passwords in the lock-screen state via unspecified vectors.

Frequently asked questions

What is CVE-2016-1851?: The Screen Lock feature in Apple OS X before 10.11.5 mishandles password profiles, which allows physically proximate attackers to reset expired passwords in the lock-screen state via unspecified vectors.
How severe is CVE-2016-1851?: CVE-2016-1851 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-1851 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1851?: CVE-2016-1851 affects Apple Mac Os X. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-1851?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-1851 published?: CVE-2016-1851 was published on 2016-05-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

More vulnerabilities in Apple Mac Os X

CVE-2018-4310 — Critical (CVSS 10.0): An access issue was addressed with additional sandbox restrictions. This issue affected versions prior to iOS 12, macOS…
CVE-2019-6235 — Critical (CVSS 10.0): A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 12.1.3, macOS Mojave…
CVE-2018-4229 — Critical (CVSS 10.0): An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the "Grand…
CVE-2018-4091 — Critical (CVSS 10.0): An issue was discovered in certain Apple products. macOS before 10.13.3 is affected. The issue involves the "Sandbox"…
CVE-2015-8659 — Critical (CVSS 10.0): The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a…
CVE-2015-7071 — Critical (CVSS 10.0): The File Bookmark component in Apple OS X before 10.11.2 allows attackers to bypass a sandbox protection mechanism for…

All CVEs affecting Apple Mac Os X →