How severe is CVE-2019-0770?

CVE-2019-0770 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-0770 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-0770?

CVE-2019-0770 affects Microsoft Edge. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-0770?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-0770 published?

CVE-2019-0770 was published on 2019-04-09 and last updated on 2026-06-17.

CVE-2019-0770

CVE-2019-0770 is a high-severity vulnerability in Microsoft Edge with a CVSS 3.x base score of 7.5. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.6
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Microsoft Edge
Published: 2019-04-09
Last modified: 2026-06-17

Description

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-0609, CVE-2019-0639, CVE-2019-0680, CVE-2019-0769, CVE-2019-0771, CVE-2019-0773, CVE-2019-0783.

Frequently asked questions

What is CVE-2019-0770?: A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-0609, CVE-2019-0639, CVE-2019-0680, CVE-2019-0769, CVE-2019-0771, CVE-2019-0773, CVE-2019-0783.
How severe is CVE-2019-0770?: CVE-2019-0770 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-0770 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-0770?: CVE-2019-0770 affects Microsoft Edge. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-0770?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-0770 published?: CVE-2019-0770 was published on 2019-04-09 and last updated on 2026-06-17.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0770

Affected products (1)

cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*

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