How severe is CVE-2016-1731?

CVE-2016-1731 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2016-1731 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1731?

CVE-2016-1731 affects Apple Software Update. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-1731?

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

When was CVE-2016-1731 published?

CVE-2016-1731 was published on 2016-03-14 and last updated on 2026-06-17.

CVE-2016-1731

CVE-2016-1731 is a medium-severity vulnerability in Apple Software Update with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-310.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 5.0
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Apple Software Update
Published: 2016-03-14
Last modified: 2026-06-17

Description

Apple Software Update before 2.2 on Windows does not use HTTPS, which makes it easier for man-in-the-middle attackers to spoof updates by modifying the client-server data stream.

Frequently asked questions

What is CVE-2016-1731?: Apple Software Update before 2.2 on Windows does not use HTTPS, which makes it easier for man-in-the-middle attackers to spoof updates by modifying the client-server data stream.
How severe is CVE-2016-1731?: CVE-2016-1731 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-1731 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1731?: CVE-2016-1731 affects Apple Software Update. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-1731?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-1731 published?: CVE-2016-1731 was published on 2016-03-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apple:software_update:*:*:*:*:*:*:*:*

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