How severe is CVE-2019-5786?

CVE-2019-5786 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-5786 being actively exploited?

Yes. CVE-2019-5786 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-05-23, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2019-5786?

CVE-2019-5786 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-5786?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2019-5786 have an EU (EUVD) identifier?

Yes. CVE-2019-5786 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-0957. It is also flagged as exploited in the EUVD (since 2022-05-23).

When was CVE-2019-5786 published?

CVE-2019-5786 was published on 2019-06-27 and last updated on 2026-06-17.

CVE-2019-5786

CVE-2019-5786 is a medium-severity vulnerability in Google Chrome with a CVSS 3.x base score of 6.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-05-23). The underlying weakness is classified as CWE-416.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 62% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-05-23)
EU (EUVD) id: EUVD-2020-0957
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-05-23)
Weakness: CWE-416
Affected product: Google Chrome
Published: 2019-06-27
Last modified: 2026-06-17

Description

Object lifetime issue in Blink in Google Chrome prior to 72.0.3626.121 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.

Frequently asked questions

What is CVE-2019-5786?: Object lifetime issue in Blink in Google Chrome prior to 72.0.3626.121 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.
How severe is CVE-2019-5786?: CVE-2019-5786 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-5786 being actively exploited?: Yes. CVE-2019-5786 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-05-23, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2019-5786?: CVE-2019-5786 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-5786?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2019-5786 have an EU (EUVD) identifier?: Yes. CVE-2019-5786 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-0957. It is also flagged as exploited in the EUVD (since 2022-05-23).
When was CVE-2019-5786 published?: CVE-2019-5786 was published on 2019-06-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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