How severe is CVE-2019-8731?

CVE-2019-8731 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-8731 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-8731?

CVE-2019-8731 affects Apple Iphone Os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-8731?

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

When was CVE-2019-8731 published?

CVE-2019-8731 was published on 2019-12-18 and last updated on 2026-06-17.

CVE-2019-8731

CVE-2019-8731 is a medium-severity vulnerability in Apple Iphone Os with a CVSS 3.x base score of 5.5. 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-276.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-276
Affected product: Apple Iphone Os
Published: 2019-12-18
Last modified: 2026-06-17

Description

A permissions issue existed in which execute permission was incorrectly granted. This issue was addressed with improved permission validation. This issue is fixed in iOS 13. Processing a maliciously crafted file may disclose user information.

Frequently asked questions

What is CVE-2019-8731?: A permissions issue existed in which execute permission was incorrectly granted. This issue was addressed with improved permission validation. This issue is fixed in iOS 13. Processing a maliciously crafted file may disclose user information.
How severe is CVE-2019-8731?: CVE-2019-8731 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-8731 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-8731?: CVE-2019-8731 affects Apple Iphone Os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-8731?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-8731 published?: CVE-2019-8731 was published on 2019-12-18 and last updated on 2026-06-17.

References

https://support.apple.com/HT210606

Affected products (1)

cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

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