CVE-2018-0776

Q: How do I fix CVE-2018-0776?

Upgrade chakracore to 1.7.6 or later.

Q: Is CVE-2018-0776 being actively exploited?

Not that we know of. CVE-2018-0776 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 78.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

Q: How severe is CVE-2018-0776?

CVE-2018-0776 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2018-0776 affect?

Published advisories record a fix for chakracore (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGHEPSS 100th pctl

7.5

CVSS v3

NVD

Description

Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2018-0758, CVE-2018-0762, CVE-2018-0768, CVE-2018-0769, CVE-2018-0770, CVE-2018-0772, CVE-2018-0773, CVE-2018-0774, CVE-2018-0775, CVE-2018-0777, CVE-2018-0778, and CVE-2018-0781.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

chakracoreNVD

Affected:< 1.7.6Fixed in:1.7.6CVE-2018-0776derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

78.43%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Patch1

portal.msrc.microsoft.com

Exploit1

exploit-db.com

Third-Party Advisory2

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

Common questions

How do I fix CVE-2018-0776?

Upgrade chakracore to 1.7.6 or later.

Is CVE-2018-0776 being actively exploited?

Not that we know of. CVE-2018-0776 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 78.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

How severe is CVE-2018-0776?

CVE-2018-0776 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2018-0776 affect?

Published advisories record a fix for chakracore (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.