CVE-2018-1001 — A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10

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HIGH

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10

Published Apr 12, 2018

7.5

HIGH

CVSS 3.0

EPSS 14.95%

Description

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka "Scripting Engine Memory Corruption Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10. This CVE ID is unique from CVE-2018-0988, CVE-2018-0996.

Affected products

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 1511 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1511 for x64-based Systems
  Status
  affected
  Constraints
  -
- 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 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 Internet Explorer 9 Default
n/a
- Version
  Windows Server 2008 for 32-bit Systems Service Pack 2
  Status
  affected
  Constraints
  -
- Version
  Windows Server 2008 for x64-based Systems Service Pack 2
  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

Internet Explorer 10

n/a

Version	Status	Constraints
Windows Server 2012	affected	-

Microsoft

Internet Explorer 11

n/a

Version	Status	Constraints
Windows 10 Version 1511 for 32-bit Systems	affected	-
Windows 10 Version 1511 for x64-based Systems	affected	-
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 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

Internet Explorer 9

n/a

Version	Status	Constraints
Windows Server 2008 for 32-bit Systems Service Pack 2	affected	-
Windows Server 2008 for x64-based Systems Service Pack 2	affected	-

Remediation

No remediation recorded yet.

Metrics

14.95% 0.14954

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

EPSS probability 0.14954

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3
EPSS v4

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3
EPSS v4

Table of values (33 key points)

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

Date	Score	Percentile	Model
Oct 1, 2026	14.95% (0.14954)	96.61th	v5 (v2026.06.15)
Jul 18, 2026	15.08% (0.15076)	96.35th	v5 (v2026.06.15)
Jun 15, 2026	13.78% (0.13778)	96.02th	v5 (v2026.06.15)
Jan 2, 2026	29.94% (0.29935)	96.51th	v4 (v2025.03.14)
Sep 28, 2025	28.25% (0.28246)	96.36th	v4 (v2025.03.14)
Aug 31, 2025	23.85% (0.23853)	95.80th	v4 (v2025.03.14)
Aug 4, 2025	18.91% (0.18909)	95.06th	v4 (v2025.03.14)
Apr 6, 2025	13.00% (0.13005)	93.47th	v4 (v2025.03.14)
Mar 30, 2025	7.54% (0.07538)	90.98th	v4 (v2025.03.14)
Mar 29, 2025	57.60% (0.57600)	97.35th	v4 (v2025.03.14)
Mar 17, 2025	7.54% (0.07538)	91.19th	v4 (v2025.03.14)
Dec 17, 2024	10.75% (0.10753)	95.06th	v3 (v2023.03.01)
Jul 16, 2024	14.77% (0.14767)	95.83th	v3 (v2023.03.01)
Mar 22, 2024	15.82% (0.15815)	95.81th	v3 (v2023.03.01)
Feb 20, 2024	14.13% (0.14128)	95.51th	v3 (v2023.03.01)
Dec 26, 2023	17.10% (0.17104)	95.60th	v3 (v2023.03.01)
Nov 29, 2023	12.84% (0.12842)	94.93th	v3 (v2023.03.01)
Nov 5, 2023	15.64% (0.15639)	95.32th	v3 (v2023.03.01)
Oct 12, 2023	16.46% (0.16459)	95.39th	v3 (v2023.03.01)
Sep 23, 2023	14.16% (0.14159)	95.03th	v3 (v2023.03.01)
Sep 2, 2023	13.84% (0.13843)	94.94th	v3 (v2023.03.01)
Jul 21, 2023	12.12% (0.12115)	94.61th	v3 (v2023.03.01)
Jul 20, 2023	8.93% (0.08934)	93.76th	v3 (v2023.03.01)
Mar 7, 2023	8.84% (0.08841)	93.51th	v3 (v2023.03.01)
Mar 6, 2023	39.32% (0.39320)	98.11th	v2 (v2022.01.01)
Jan 6, 2023	39.32% (0.39320)	98.06th	v2 (v2022.01.01)
Aug 2, 2022	34.60% (0.34599)	97.70th	v2 (v2022.01.01)
May 12, 2022	32.42% (0.32419)	97.49th	v2 (v2022.01.01)
Mar 28, 2022	31.10% (0.31104)	96.45th	v2 (v2022.01.01)
Feb 22, 2022	27.14% (0.27139)	95.87th	v2 (v2022.01.01)
Feb 4, 2022	23.10% (0.23099)	94.56th	v2 (v2022.01.01)
Feb 3, 2022	14.80% (0.14798)	89.93th	v5 (v2026.06.15)
Apr 14, 2021	14.80% (0.14798)	0.00th	v1

Weaknesses (1)

CWE-787

Out-of-bounds Write

References (3)

http://www.securityfocus.com/bid/103609
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040653
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-1001
x_refsource_CONFIRMPatchVendor Advisory

Link	Providers	Tags
http://www.securityfocus.com/bid/103609		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040653		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-1001		x_refsource_CONFIRMPatchVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microsoft

Published Apr 12, 2018

Updated Aug 5, 2024

Reserved Dec 1, 2017

Link CVE-2018-1001

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-1001

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-1001