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CVE-2018-8174

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 Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012,…

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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 Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
CVSS 7.5 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
0.0/10
REALITY · THREAT PRIORITY
8.6/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 7.5: +1.12
  • Fresh EPSS: 88.24%: +0.44

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 12 documents and public datasets.

Hype components

Headline sample (25%)
0/100
Press, 30 days (60%)
0/100
Grounded branding (15%)
0/100
HYPE TOTAL0/100

Sources and documents

www.trendmicro.com
Press · 05 Nov 2019, 08:00 · New Capesand Exploit Kit Reuses Public Exploits, Tools - www.trendmicro.com
Recorded Future
Press · 19 Mar 2019, 07:00 · Microsoft Targeted by 8 of 10 Top Vulnerabilities in 2018 - Recorded Future
Malwarebytes
Press · 26 Sep 2018, 07:00 · Buggy implementation of CVE-2018-8373 vulnerability used to deliver Quasar RAT - Malwarebytes
www.trendmicro.com
Press · 25 Sep 2018, 07:00 · New CVE-2018-8373 Exploit Spotted - www.trendmicro.com
BleepingComputer
Press · 18 Aug 2018, 07:00 · Zero-Day In Microsoft's VBScript Engine Used By Darkhotel APT - BleepingComputer
See all 12 source documents
Securelist
Press · 03 Jul 2018, 07:00 · Delving deep into VBScript: Analysis of CVE-2018-8174 exploitation - Securelist
www.trendmicro.com
Press · 02 Jul 2018, 07:00 · Down but Not Out: Recent Exploit Kit Activities - www.trendmicro.com
Security Affairs
Press · 14 Jun 2018, 07:00 · Analysis of the evolution of exploit kits in the threat landscape - Security Affairs
www.trendmicro.com
Press · 31 May 2018, 07:00 · Rig Abuses CVE-2018-8174 to Deliver Monero Miner - www.trendmicro.com
Malwarebytes
Press · 15 May 2018, 07:00 · Adobe Reader zero-day discovered alongside Windows vulnerability - Malwarebytes
Securelist
Press · 09 May 2018, 07:00 · The King is dead. Long live the King! - Securelist
Malwarebytes
Press · 05 Feb 2018, 08:00 · New Flash Player zero-day comes inside Office document - Malwarebytes

Score evolution

● Hype   ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.6 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

1

Public exploit entries / repo candidates

Source entries and unverified repository candidates are counted separately.

Public exploit evidence
Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence
Exploitation recorded
Priority basis
Recorded exploitation; CVSS 7.5; EPSS 88.2%
Attention, last 30 days
0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential
network access, no prior privileges, user interaction, additional attack conditions.
Observed activity
Exploitation recorded in CISA KEV.
Known scale
Not quantified.
Evidence confidence basis
Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:01.757148+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline
First press mention
05 Feb 2018, 08:00
Published
09 May 2018, 19:00
Latest press mention
05 Nov 2019, 08:00
Added to the CISA KEV catalog
15 Feb 2022, 00:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
1 repositories