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

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HIGH

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

Published May 9, 2018

7.5

HIGH

CVSS 3.0

EPSS 67.17%

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.

Affected products

Vendor Microsoft Product ChakraCore Default
n/a
- Version
  ChakraCore
  Status
  affected
  Constraints
  -
Vendor Microsoft Product Internet Explorer 10 Default
n/a
- Version
  Windows Server 2012
  Status
  affected
  Constraints
  -
Vendor Microsoft Product Internet Explorer 11 Default
n/a
- Version
  Windows 10 Version 1607 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1607 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1703 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1703 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1709 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1709 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1803 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1803 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 7 for 32-bit Systems Service Pack 1
  Status
  affected
  Constraints
  -
- Version
  Windows 7 for x64-based Systems Service Pack 1
  Status
  affected
  Constraints
  -
- Version
  Windows 8.1 for 32-bit systems
  Status
  affected
  Constraints
  -
- Version
  Windows 8.1 for x64-based systems
  Status
  affected
  Constraints
  -
- Version
  Windows RT 8.1
  Status
  affected
  Constraints
  -
- Version
  Windows Server 2008 R2 for x64-based Systems Service Pack 1
  Status
  affected
  Constraints
  -
- Version
  Windows Server 2012 R2
  Status
  affected
  Constraints
  -
- Version
  Windows Server 2016
  Status
  affected
  Constraints
  -
Vendor Microsoft Product Microsoft Edge Default
n/a
- Version
  Windows 10 Version 1607 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1607 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1703 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1703 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1709 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1709 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1803 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1803 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows Server 2016
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Microsoft

ChakraCore

n/a

Version	Status	Constraints
ChakraCore	affected	-

Microsoft

Internet Explorer 10

n/a

Version	Status	Constraints
Windows Server 2012	affected	-

Microsoft

Internet Explorer 11

n/a

Version	Status	Constraints
Windows 10 Version 1607 for 32-bit Systems	affected	-
Windows 10 Version 1607 for x64-based Systems	affected	-
Windows 10 Version 1703 for 32-bit Systems	affected	-
Windows 10 Version 1703 for x64-based Systems	affected	-
Windows 10 Version 1709 for 32-bit Systems	affected	-
Windows 10 Version 1709 for x64-based Systems	affected	-
Windows 10 Version 1803 for 32-bit Systems	affected	-
Windows 10 Version 1803 for x64-based Systems	affected	-
Windows 10 for 32-bit Systems	affected	-
Windows 10 for x64-based Systems	affected	-
Windows 7 for 32-bit Systems Service Pack 1	affected	-
Windows 7 for x64-based Systems Service Pack 1	affected	-
Windows 8.1 for 32-bit systems	affected	-
Windows 8.1 for x64-based systems	affected	-
Windows RT 8.1	affected	-
Windows Server 2008 R2 for x64-based Systems Service Pack 1	affected	-
Windows Server 2012 R2	affected	-
Windows Server 2016	affected	-

Microsoft

Microsoft Edge

n/a

Version	Status	Constraints
Windows 10 Version 1607 for 32-bit Systems	affected	-
Windows 10 Version 1607 for x64-based Systems	affected	-
Windows 10 Version 1703 for 32-bit Systems	affected	-
Windows 10 Version 1703 for x64-based Systems	affected	-
Windows 10 Version 1709 for 32-bit Systems	affected	-
Windows 10 Version 1709 for x64-based Systems	affected	-
Windows 10 Version 1803 for 32-bit Systems	affected	-
Windows 10 Version 1803 for x64-based Systems	affected	-
Windows 10 for 32-bit Systems	affected	-
Windows 10 for x64-based Systems	affected	-
Windows Server 2016	affected	-

Remediation

No remediation recorded yet.

Metrics

67.17% 0.67166

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.67166

Score over time

2021–2026

EPSS v1
EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v1
EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (49 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	67.17% (0.67166)	99.28th	v5 (v2026.06.15)
Sep 22, 2026	67.17% (0.67166)	99.27th	v5 (v2026.06.15)
Sep 21, 2026	52.77% (0.52767)	98.95th	v5 (v2026.06.15)
Sep 20, 2026	67.17% (0.67166)	99.27th	v5 (v2026.06.15)
Sep 6, 2026	66.88% (0.66877)	99.24th	v5 (v2026.06.15)
Sep 5, 2026	52.41% (0.52413)	98.91th	v5 (v2026.06.15)
Aug 30, 2026	66.88% (0.66877)	99.24th	v5 (v2026.06.15)
Aug 28, 2026	52.41% (0.52413)	98.91th	v5 (v2026.06.15)
Aug 24, 2026	66.88% (0.66877)	99.23th	v5 (v2026.06.15)
Aug 23, 2026	52.41% (0.52413)	98.91th	v5 (v2026.06.15)
Jun 15, 2026	67.23% (0.67233)	99.20th	v5 (v2026.06.15)
Nov 21, 2025	72.84% (0.72843)	98.71th	v4 (v2025.03.14)
Nov 18, 2025	81.00% (0.80998)	99.23th	v4 (v2025.03.14)
Jun 20, 2025	72.84% (0.72843)	98.69th	v4 (v2025.03.14)
May 27, 2025	77.55% (0.77547)	98.92th	v4 (v2025.03.14)
Mar 29, 2025	72.38% (0.72384)	98.36th	v4 (v2025.03.14)
Mar 17, 2025	73.43% (0.73432)	98.72th	v4 (v2025.03.14)
Feb 27, 2025	88.84% (0.88838)	99.02th	v3 (v2023.03.01)
Dec 17, 2024	90.06% (0.90057)	99.05th	v3 (v2023.03.01)
Dec 12, 2024	94.00% (0.94001)	99.27th	v3 (v2023.03.01)
May 24, 2024	94.47% (0.94474)	99.22th	v3 (v2023.03.01)
Apr 18, 2024	95.01% (0.95007)	99.27th	v3 (v2023.03.01)
Mar 18, 2024	94.52% (0.94522)	99.17th	v3 (v2023.03.01)
Feb 22, 2024	95.07% (0.95071)	99.24th	v3 (v2023.03.01)
Jan 23, 2024	95.22% (0.95216)	99.18th	v3 (v2023.03.01)
Dec 27, 2023	95.66% (0.95664)	99.27th	v3 (v2023.03.01)
Dec 3, 2023	95.59% (0.95594)	99.23th	v3 (v2023.03.01)
Nov 9, 2023	94.31% (0.94315)	98.98th	v3 (v2023.03.01)
Oct 21, 2023	90.52% (0.90524)	98.47th	v3 (v2023.03.01)
Sep 30, 2023	94.21% (0.94213)	98.89th	v3 (v2023.03.01)
Sep 8, 2023	94.77% (0.94775)	98.96th	v3 (v2023.03.01)
Aug 18, 2023	93.54% (0.93542)	98.73th	v3 (v2023.03.01)
Aug 1, 2023	94.55% (0.94548)	98.88th	v3 (v2023.03.01)
Jul 14, 2023	95.98% (0.95984)	99.21th	v3 (v2023.03.01)
Jul 8, 2023	95.85% (0.95850)	99.17th	v3 (v2023.03.01)
Jun 26, 2023	96.05% (0.96053)	99.22th	v3 (v2023.03.01)
Jun 7, 2023	96.42% (0.96422)	99.32th	v3 (v2023.03.01)
May 21, 2023	96.46% (0.96456)	99.31th	v3 (v2023.03.01)
May 8, 2023	96.65% (0.96647)	99.40th	v3 (v2023.03.01)
May 3, 2023	96.60% (0.96602)	99.37th	v3 (v2023.03.01)
Apr 18, 2023	96.65% (0.96653)	99.38th	v3 (v2023.03.01)
Mar 31, 2023	96.36% (0.96362)	99.23th	v3 (v2023.03.01)
Mar 15, 2023	96.67% (0.96665)	99.36th	v3 (v2023.03.01)
Mar 7, 2023	96.50% (0.96501)	99.26th	v3 (v2023.03.01)
Mar 6, 2023	74.26% (0.74260)	99.31th	v2 (v2022.01.01)
Feb 4, 2022	74.26% (0.74260)	99.16th	v2 (v2022.01.01)
Feb 3, 2022	30.55% (0.30550)	96.78th	v1
Sep 1, 2021	30.55% (0.30550)	98.55th	v1
Apr 14, 2021	30.55% (0.30550)	0.00th	v1

Weaknesses (1)

CWE-200

Exposure of Sensitive Information

References (8)

http://www.securityfocus.com/bid/103986
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040844
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://github.com/advisories/GHSA-xphq-3x6q-q2qq
Advisory
https://nvd.nist.gov/vuln/detail/CVE-2018-8145
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8145
x_refsource_CONFIRMPatchVendor Advisory
https://web.archive.org/web/20210124164314/http://www.securityfocus.com/bid/103986
https://web.archive.org/web/20211204185256/http://www.securitytracker.com/id/1040844
https://www.exploit-db.com/exploits/45011/
exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry

Link	Providers	Tags
http://www.securityfocus.com/bid/103986		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040844		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://github.com/advisories/GHSA-xphq-3x6q-q2qq		Advisory
https://nvd.nist.gov/vuln/detail/CVE-2018-8145
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8145		x_refsource_CONFIRMPatchVendor Advisory
https://web.archive.org/web/20210124164314/http://www.securityfocus.com/bid/103986
https://web.archive.org/web/20211204185256/http://www.securitytracker.com/id/1040844
https://www.exploit-db.com/exploits/45011/		exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry