CVE-2018-8260 — A Remote Code Execution vulnerability exists in .NET software when the software fails to check the source markup of a file, aka ".NET Framework Remote Code Execution Vulnerability." This affects .NET Framework 4.7.2, Microsoft .NET Framework 4.7.2

Back Back to CVE browser

HIGH

A Remote Code Execution vulnerability exists in .NET software when the software fails to check the source markup of a file, aka ".NET Framework Remote Code Execution Vulnerability." This affects .NET Framework 4.7.2, Microsoft .NET Framework 4.7.2

Published Jul 11, 2018

8.8

HIGH

CVSS 3.0

EPSS 15.53%

Description

A Remote Code Execution vulnerability exists in .NET software when the software fails to check the source markup of a file, aka ".NET Framework Remote Code Execution Vulnerability." This affects .NET Framework 4.7.2, Microsoft .NET Framework 4.7.2.

Affected products

Vendor Microsoft Product Microsoft .NET Framework Default
n/a
- Version
  4.7.2 on Windows 10 Version 1607 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows 10 Version 1607 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows 10 Version 1703 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows 10 Version 1703 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows 10 Version 1709 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows 10 Version 1709 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows 10 Version 1803 for 32-bit Systems
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows 10 Version 1803 for x64-based Systems
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows 7 for 32-bit Systems Service Pack 1
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows 7 for x64-based Systems Service Pack 1
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows 8.1 for 32-bit systems
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows 8.1 for x64-based systems
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows RT 8.1
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows Server 2012
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows Server 2012 (Server Core installation)
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows Server 2012 R2
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows Server 2012 R2 (Server Core installation)
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows Server 2016
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows Server 2016 (Server Core installation)
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows Server, version 1709 (Server Core Installation)
  Status
  affected
  Constraints
  -
- Version
  4.7.2 on Windows Server, version 1803 (Server Core Installation)
  Status
  affected
  Constraints
  -
Vendor Microsoft Product n/a Default
n/a
- Version
  4.7.2 Developer Pack
  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

Microsoft .NET Framework

n/a

Version	Status	Constraints
4.7.2 on Windows 10 Version 1607 for 32-bit Systems	affected	-
4.7.2 on Windows 10 Version 1607 for x64-based Systems	affected	-
4.7.2 on Windows 10 Version 1703 for 32-bit Systems	affected	-
4.7.2 on Windows 10 Version 1703 for x64-based Systems	affected	-
4.7.2 on Windows 10 Version 1709 for 32-bit Systems	affected	-
4.7.2 on Windows 10 Version 1709 for x64-based Systems	affected	-
4.7.2 on Windows 10 Version 1803 for 32-bit Systems	affected	-
4.7.2 on Windows 10 Version 1803 for x64-based Systems	affected	-
4.7.2 on Windows 7 for 32-bit Systems Service Pack 1	affected	-
4.7.2 on Windows 7 for x64-based Systems Service Pack 1	affected	-
4.7.2 on Windows 8.1 for 32-bit systems	affected	-
4.7.2 on Windows 8.1 for x64-based systems	affected	-
4.7.2 on Windows RT 8.1	affected	-
4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1	affected	-
4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)	affected	-
4.7.2 on Windows Server 2012	affected	-
4.7.2 on Windows Server 2012 (Server Core installation)	affected	-
4.7.2 on Windows Server 2012 R2	affected	-
4.7.2 on Windows Server 2012 R2 (Server Core installation)	affected	-
4.7.2 on Windows Server 2016	affected	-
4.7.2 on Windows Server 2016 (Server Core installation)	affected	-
4.7.2 on Windows Server, version 1709 (Server Core Installation)	affected	-
4.7.2 on Windows Server, version 1803 (Server Core Installation)	affected	-

Microsoft

n/a

Version	Status	Constraints
4.7.2 Developer Pack	affected	-

Remediation

No remediation recorded yet.

Metrics

15.53% 0.15525

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

EPSS probability 0.15525

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	15.53% (0.15525)	96.71th	v5 (v2026.06.15)
Jun 15, 2026	14.58% (0.14583)	96.20th	v5 (v2026.06.15)
Jun 13, 2026	32.18% (0.32183)	96.96th	v4 (v2025.03.14)
Apr 27, 2026	27.63% (0.27631)	96.45th	v4 (v2025.03.14)
Apr 18, 2026	22.17% (0.22170)	95.81th	v4 (v2025.03.14)
Mar 16, 2026	33.20% (0.33202)	96.85th	v4 (v2025.03.14)
Jan 25, 2026	48.85% (0.48851)	97.67th	v4 (v2025.03.14)
Dec 27, 2025	56.32% (0.56321)	98.01th	v4 (v2025.03.14)
Nov 21, 2025	53.25% (0.53250)	97.84th	v4 (v2025.03.14)
Nov 18, 2025	35.50% (0.35502)	96.85th	v4 (v2025.03.14)
Nov 2, 2025	53.25% (0.53250)	97.85th	v4 (v2025.03.14)
Sep 3, 2025	46.77% (0.46770)	97.62th	v4 (v2025.03.14)
Mar 30, 2025	49.08% (0.49083)	97.54th	v4 (v2025.03.14)
Mar 29, 2025	62.92% (0.62924)	97.71th	v4 (v2025.03.14)
Mar 19, 2025	49.08% (0.49083)	97.44th	v4 (v2025.03.14)
Mar 17, 2025	45.03% (0.45029)	97.29th	v4 (v2025.03.14)
Jan 4, 2025	58.28% (0.58279)	97.87th	v3 (v2023.03.01)
Dec 17, 2024	64.26% (0.64260)	98.03th	v3 (v2023.03.01)
Dec 12, 2024	12.63% (0.12632)	95.69th	v3 (v2023.03.01)
Jun 20, 2024	12.93% (0.12931)	95.52th	v3 (v2023.03.01)
May 20, 2024	14.66% (0.14662)	95.76th	v3 (v2023.03.01)
Apr 25, 2024	14.73% (0.14726)	95.70th	v3 (v2023.03.01)
Mar 26, 2024	18.11% (0.18110)	96.06th	v3 (v2023.03.01)
Feb 28, 2024	17.88% (0.17879)	96.00th	v3 (v2023.03.01)
Dec 22, 2023	16.14% (0.16142)	95.48th	v3 (v2023.03.01)
Dec 1, 2023	16.11% (0.16112)	95.42th	v3 (v2023.03.01)
Nov 9, 2023	17.70% (0.17695)	95.60th	v3 (v2023.03.01)
Oct 19, 2023	23.07% (0.23071)	95.98th	v3 (v2023.03.01)
Oct 2, 2023	18.16% (0.18162)	95.54th	v3 (v2023.03.01)
Aug 27, 2023	23.63% (0.23633)	95.96th	v3 (v2023.03.01)
Jul 8, 2023	27.71% (0.27708)	96.18th	v3 (v2023.03.01)
Jul 4, 2023	34.57% (0.34566)	96.51th	v3 (v2023.03.01)
Jun 19, 2023	34.39% (0.34393)	96.50th	v3 (v2023.03.01)
May 8, 2023	29.16% (0.29159)	96.22th	v3 (v2023.03.01)
Apr 30, 2023	22.93% (0.22932)	95.81th	v3 (v2023.03.01)
Apr 10, 2023	27.31% (0.27314)	96.08th	v3 (v2023.03.01)
Mar 7, 2023	29.25% (0.29247)	96.16th	v3 (v2023.03.01)
Mar 6, 2023	34.60% (0.34599)	97.77th	v2 (v2022.01.01)
Oct 31, 2022	34.60% (0.34599)	97.73th	v2 (v2022.01.01)
Aug 10, 2022	32.42% (0.32419)	97.50th	v2 (v2022.01.01)
Jun 26, 2022	31.10% (0.31104)	97.44th	v2 (v2022.01.01)
May 23, 2022	27.14% (0.27139)	97.04th	v2 (v2022.01.01)
Apr 16, 2022	23.10% (0.23099)	96.46th	v2 (v2022.01.01)
Apr 1, 2022	21.36% (0.21361)	96.28th	v2 (v2022.01.01)
Feb 4, 2022	21.36% (0.21361)	94.19th	v2 (v2022.01.01)
Feb 3, 2022	17.55% (0.17549)	91.03th	v1
Jan 6, 2022	17.55% (0.17549)	90.92th	v1
Sep 1, 2021	17.55% (0.17549)	97.67th	v1
Apr 14, 2021	17.55% (0.17549)	0.00th	v1

Weaknesses (1)

CWE-20

Improper Input Validation

References (3)

http://www.securityfocus.com/bid/104666
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041257
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8260
x_refsource_CONFIRMVendor Advisory

Link	Providers	Tags
http://www.securityfocus.com/bid/104666		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041257		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8260		x_refsource_CONFIRMVendor Advisory