CVE-2018-8625 — A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution 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 VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10

Published Dec 12, 2018

7.5

HIGH

CVSS 3.0

EPSS 43.76%

Description

A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution Vulnerability." This affects Internet Explorer 9, Internet Explorer 11, Internet Explorer 10.

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 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 ARM64-based 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 ARM64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1803 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1809 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1809 for ARM64-based Systems
  Status
  affected
  Constraints
  -
- Version
  Windows 10 Version 1809 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
  -
- Version
  Windows Server 2019
  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 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 ARM64-based 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 ARM64-based Systems	affected	-
Windows 10 Version 1803 for x64-based Systems	affected	-
Windows 10 Version 1809 for 32-bit Systems	affected	-
Windows 10 Version 1809 for ARM64-based Systems	affected	-
Windows 10 Version 1809 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	-
Windows Server 2019	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

43.76% 0.43761

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.43761

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 (36 key points)

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

Date	Score	Percentile	Model
Oct 2, 2026	43.76% (0.43761)	98.71th	v5 (v2026.06.15)
Sep 22, 2026	43.76% (0.43761)	98.69th	v5 (v2026.06.15)
Sep 21, 2026	39.58% (0.39576)	98.59th	v5 (v2026.06.15)
Sep 6, 2026	43.76% (0.43761)	98.66th	v5 (v2026.06.15)
Sep 5, 2026	39.58% (0.39576)	98.56th	v5 (v2026.06.15)
Aug 30, 2026	43.76% (0.43761)	98.65th	v5 (v2026.06.15)
Aug 28, 2026	39.58% (0.39576)	98.55th	v5 (v2026.06.15)
Aug 24, 2026	43.76% (0.43761)	98.64th	v5 (v2026.06.15)
Aug 23, 2026	39.58% (0.39576)	98.55th	v5 (v2026.06.15)
Jun 15, 2026	43.76% (0.43761)	98.58th	v5 (v2026.06.15)
May 30, 2026	56.40% (0.56396)	98.16th	v4 (v2025.03.14)
Nov 21, 2025	59.42% (0.59423)	98.14th	v4 (v2025.03.14)
Nov 18, 2025	71.47% (0.71475)	98.78th	v4 (v2025.03.14)
Nov 12, 2025	59.42% (0.59423)	98.14th	v4 (v2025.03.14)
May 26, 2025	60.54% (0.60542)	98.15th	v4 (v2025.03.14)
Mar 31, 2025	63.06% (0.63063)	98.24th	v4 (v2025.03.14)
Mar 30, 2025	61.07% (0.61071)	98.15th	v4 (v2025.03.14)
Mar 29, 2025	81.11% (0.81105)	98.92th	v4 (v2025.03.14)
Mar 17, 2025	61.07% (0.61071)	98.13th	v4 (v2025.03.14)
Feb 6, 2025	83.96% (0.83963)	98.73th	v3 (v2023.03.01)
Dec 17, 2024	90.69% (0.90690)	99.09th	v3 (v2023.03.01)
Dec 12, 2024	95.94% (0.95937)	99.54th	v3 (v2023.03.01)
May 4, 2024	96.13% (0.96125)	99.49th	v3 (v2023.03.01)
Dec 5, 2023	96.18% (0.96180)	99.37th	v3 (v2023.03.01)
Nov 2, 2023	96.17% (0.96173)	99.34th	v3 (v2023.03.01)
Apr 24, 2023	96.19% (0.96191)	99.20th	v3 (v2023.03.01)
Mar 7, 2023	96.56% (0.96564)	99.29th	v3 (v2023.03.01)
Mar 6, 2023	54.58% (0.54579)	98.80th	v2 (v2022.01.01)
Jan 11, 2023	54.58% (0.54579)	98.77th	v2 (v2022.01.01)
Nov 27, 2022	53.07% (0.53072)	98.72th	v2 (v2022.01.01)
Oct 24, 2022	53.86% (0.53859)	98.73th	v2 (v2022.01.01)
Jun 7, 2022	56.68% (0.56683)	98.71th	v2 (v2022.01.01)
Feb 4, 2022	58.50% (0.58500)	98.56th	v2 (v2022.01.01)
Feb 3, 2022	48.85% (0.48848)	98.99th	v1
Sep 1, 2021	48.85% (0.48848)	99.60th	v1
Apr 14, 2021	48.85% (0.48848)	0.00th	v1

Weaknesses (1)

CWE-416

Use After Free

References (3)

http://www.securityfocus.com/bid/106122
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8625
x_refsource_CONFIRMPatchVendor Advisory
https://www.exploit-db.com/exploits/46022/
exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry

Link	Providers	Tags
http://www.securityfocus.com/bid/106122		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8625		x_refsource_CONFIRMPatchVendor Advisory
https://www.exploit-db.com/exploits/46022/		exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microsoft

Published Dec 12, 2018

Updated Aug 5, 2024

Reserved Mar 14, 2018

Link CVE-2018-8625

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-8625

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-8625