How severe is CVE-2019-8725?

CVE-2019-8725 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-8725 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-8725?

CVE-2019-8725 affects Apple Safari. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-8725?

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

When was CVE-2019-8725 published?

CVE-2019-8725 was published on 2019-12-18 and last updated on 2026-06-17.

CVE-2019-8725

CVE-2019-8725 is a medium-severity vulnerability in Apple Safari with a CVSS 3.x base score of 5.3. 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 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apple Safari
Published: 2019-12-18
Last modified: 2026-06-17

Description

The issue was addressed with improved handling of service worker lifetime. This issue is fixed in Safari 13.0.1. Service workers may leak private browsing history.

Frequently asked questions

What is CVE-2019-8725?: The issue was addressed with improved handling of service worker lifetime. This issue is fixed in Safari 13.0.1. Service workers may leak private browsing history.
How severe is CVE-2019-8725?: CVE-2019-8725 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-8725 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-8725?: CVE-2019-8725 affects Apple Safari. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-8725?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-8725 published?: CVE-2019-8725 was published on 2019-12-18 and last updated on 2026-06-17.

References

https://support.apple.com/HT210605

Affected products (1)

cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*

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