CVE-2018-8351 — An information disclosure vulnerability exists when affected Microsoft browsers improperly allow cross-frame interaction, aka "Microsoft Browser Information Disclosure Vulnerability." This affects Internet Explorer 11, Microsoft Edge, Internet Explorer 10

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MEDIUM

An information disclosure vulnerability exists when affected Microsoft browsers improperly allow cross-frame interaction, aka "Microsoft Browser Information Disclosure Vulnerability." This affects Internet Explorer 11, Microsoft Edge, Internet Explorer 10

Published Aug 15, 2018

6.5

MEDIUM

CVSS 3.0

EPSS 7.87%

Description

An information disclosure vulnerability exists when affected Microsoft browsers improperly allow cross-frame interaction, aka "Microsoft Browser Information Disclosure Vulnerability." This affects Internet Explorer 11, Microsoft Edge, 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 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 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
  -

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 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 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	-

Remediation

No remediation recorded yet.

Metrics

7.87% 0.07870

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

EPSS probability 0.07870

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 1, 2026	7.87% (0.07870)	94.53th	v5 (v2026.06.15)
Sep 22, 2026	7.87% (0.07870)	94.43th	v5 (v2026.06.15)
Sep 21, 2026	6.28% (0.06284)	93.35th	v5 (v2026.06.15)
Sep 6, 2026	7.87% (0.07870)	94.31th	v5 (v2026.06.15)
Sep 5, 2026	6.28% (0.06284)	93.21th	v5 (v2026.06.15)
Aug 30, 2026	7.87% (0.07870)	94.27th	v5 (v2026.06.15)
Aug 28, 2026	6.28% (0.06284)	93.17th	v5 (v2026.06.15)
Aug 24, 2026	7.87% (0.07870)	94.24th	v5 (v2026.06.15)
Aug 23, 2026	6.28% (0.06284)	93.14th	v5 (v2026.06.15)
Jun 15, 2026	7.87% (0.07870)	93.92th	v5 (v2026.06.15)
May 7, 2026	18.75% (0.18745)	95.32th	v4 (v2025.03.14)
Jan 31, 2026	15.35% (0.15346)	94.45th	v4 (v2025.03.14)
Jan 3, 2026	17.38% (0.17379)	94.88th	v4 (v2025.03.14)
Dec 7, 2025	13.95% (0.13948)	94.05th	v4 (v2025.03.14)
Aug 9, 2025	10.46% (0.10465)	92.92th	v4 (v2025.03.14)
Mar 30, 2025	6.38% (0.06376)	90.07th	v4 (v2025.03.14)
Mar 29, 2025	38.31% (0.38309)	95.81th	v4 (v2025.03.14)
Mar 19, 2025	6.08% (0.06080)	89.56th	v4 (v2025.03.14)
Mar 17, 2025	10.44% (0.10441)	92.66th	v4 (v2025.03.14)
Dec 12, 2024	1.63% (0.01629)	88.02th	v3 (v2023.03.01)
May 30, 2024	2.29% (0.02293)	89.66th	v3 (v2023.03.01)
Jan 6, 2024	2.72% (0.02716)	89.43th	v3 (v2023.03.01)
Aug 9, 2023	3.03% (0.03034)	89.65th	v3 (v2023.03.01)
Jul 25, 2023	2.99% (0.02991)	89.56th	v3 (v2023.03.01)
Mar 7, 2023	2.78% (0.02783)	88.98th	v3 (v2023.03.01)
Mar 6, 2023	6.42% (0.06416)	91.03th	v2 (v2022.01.01)
Dec 6, 2022	6.42% (0.06416)	90.75th	v2 (v2022.01.01)
Jun 28, 2022	5.85% (0.05853)	89.80th	v2 (v2022.01.01)
May 22, 2022	5.27% (0.05274)	88.93th	v2 (v2022.01.01)
Apr 1, 2022	4.79% (0.04794)	88.19th	v2 (v2022.01.01)
Feb 9, 2022	4.79% (0.04794)	74.72th	v2 (v2022.01.01)
Feb 4, 2022	4.00% (0.04004)	67.82th	v2 (v2022.01.01)
Feb 3, 2022	9.25% (0.09255)	86.70th	v1
Jan 6, 2022	9.25% (0.09255)	86.54th	v1
Sep 1, 2021	9.25% (0.09255)	93.94th	v1
Apr 14, 2021	9.25% (0.09255)	0.00th	v1

Weaknesses (1)

CWE-829

References (3)

http://www.securityfocus.com/bid/105015
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041457
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8351
x_refsource_CONFIRMPatchVendor Advisory

Link	Providers	Tags
http://www.securityfocus.com/bid/105015		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041457		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8351		x_refsource_CONFIRMPatchVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microsoft

Published Aug 15, 2018

Updated Aug 5, 2024

Reserved Mar 14, 2018

Link CVE-2018-8351

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-8351

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-8351