How severe is CVE-2018-8145?

CVE-2018-8145 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-2018-8145 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 67% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-8145?

CVE-2018-8145 primarily affects Microsoft Chakracore. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-8145?

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-2018-8145 published?

CVE-2018-8145 was published on 2018-05-09 and last updated on 2026-06-17.

CVE-2018-8145

CVE-2018-8145 is a high-severity vulnerability in Microsoft Chakracore with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 67% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.6
EPSS exploit prediction: 67% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Microsoft Chakracore
Published: 2018-05-09
Last modified: 2026-06-17

Description

An information disclosure vulnerability exists when Chakra improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user's computer or data, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge, Internet Explorer 10. This CVE ID is unique from CVE-2018-0943, CVE-2018-8130, CVE-2018-8133, CVE-2018-8177.

Frequently asked questions

What is CVE-2018-8145?: An information disclosure vulnerability exists when Chakra improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user's computer or data, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge, Internet Explorer 10. This CVE ID is unique from CVE-2018-0943, CVE-2018-8130, CVE-2018-8133, CVE-2018-8177.
How severe is CVE-2018-8145?: CVE-2018-8145 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-2018-8145 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 67% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-8145?: CVE-2018-8145 primarily affects Microsoft Chakracore. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-8145?: 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-2018-8145 published?: CVE-2018-8145 was published on 2018-05-09 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:microsoft:chakracore:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:10:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*

More vulnerabilities in Microsoft Chakracore

CVE-2018-8500 — Critical (CVSS 9.8): A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory,…
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CVE-2017-8658 — Critical (CVSS 9.8): A remote code execution vulnerability exists in the way that the Chakra JavaScript engine renders when handling objects…
CVE-2020-1555 — High (CVSS 8.8): A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in…
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CVE-2019-0649 — High (CVSS 8.1): A vulnerability exists in Microsoft Chakra JIT server, aka 'Scripting Engine Elevation of Privileged Vulnerability'.

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