CVE-2018-8174 (GCVE-0-2018-8174)
Vulnerability from cvelistv5 – Published: 2018-05-09 19:00 – Updated: 2026-08-13 03:55Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2022-02-14 00:00 UTC
CWE
- Remote Code Execution
- CWE-787 - Out-of-bounds Write
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/44741/ | exploitx_refsource_EXPLOIT-DB |
| https://blog.0patch.com/2018/05/a-single-instruct… | x_refsource_MISC |
| https://portal.msrc.microsoft.com/en-US/security-… | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/103998 | vdb-entryx_refsource_BID |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
10 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Microsoft | Windows 7 |
Affected:
32-bit Systems Service Pack 1
Affected: x64-based Systems Service Pack 1 |
guessed | |
| Microsoft | Windows Server 2012 R2 |
Affected:
(Server Core installation)
|
guessed | |
| Microsoft | Windows RT 8.1 |
Affected:
Windows RT 8.1
|
guessed | |
| Microsoft | Windows Server 2008 |
Affected:
32-bit Systems Service Pack 2
Affected: 32-bit Systems Service Pack 2 (Server Core installation) Affected: Itanium-Based Systems Service Pack 2 Affected: x64-based Systems Service Pack 2 Affected: x64-based Systems Service Pack 2 (Server Core installation) |
guessed | |
| Microsoft | Windows Server 2012 |
Affected:
(Server Core installation)
|
guessed | |
| Microsoft | Windows 8.1 |
Affected:
32-bit systems
Affected: x64-based systems |
guessed | |
| Microsoft | Windows Server 2016 |
Affected:
(Server Core installation)
|
guessed | |
| Microsoft | Windows Server 2008 R2 |
Affected:
Itanium-Based Systems Service Pack 1
Affected: x64-based Systems Service Pack 1 Affected: x64-based Systems Service Pack 1 (Server Core installation) |
guessed | |
| Microsoft | Windows 10 |
Affected:
32-bit Systems
Affected: Version 1607 for 32-bit Systems Affected: Version 1607 for x64-based Systems Affected: Version 1703 for 32-bit Systems Affected: Version 1703 for x64-based Systems Affected: Version 1709 for 32-bit Systems Affected: Version 1709 for x64-based Systems Affected: Version 1803 for 32-bit Systems Affected: Version 1803 for x64-based Systems Affected: x64-based Systems |
guessed | |
| Microsoft | Windows 10 Servers |
Affected:
version 1709 (Server Core Installation)
Affected: version 1803 (Server Core Installation) |
guessed |
Date Public
2018-05-08 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 9dd5c956-7714-44e1-aae2-921c8d1541ed
Exploited: Yes
Timestamps
First Seen: 2022-02-15
Asserted: 2022-02-15
Scope
Notes: KEV entry: Microsoft Windows VBScript Engine Out-of-Bounds Write Vulnerability | Affected: Microsoft / Windows | 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" | Required action: Apply updates per vendor instructions. | Due date: 2022-08-15 | Known ransomware campaign use (KEV): Known | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2018-8174
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-787 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Windows |
| Due Date | 2022-08-15 |
| Date Added | 2022-02-15 |
| Vendorproject | Microsoft |
| Vulnerabilityname | Microsoft Windows VBScript Engine Out-of-Bounds Write Vulnerability |
| Knownransomwarecampaignuse | Known |
References
Created: 2026-02-02 13:25 UTC
| Updated: 2026-02-06 07:53 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: f80b61d3-4f3f-4230-909d-fa3c31b1b458
Exploited: Yes
Timestamps
First Seen: 2022-02-15
Asserted: 2022-02-15
Scope
Notes: KEVIntel entry: A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote... | Affected: Microsoft / 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) | Used in malware: yes | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Confirmed Compromise
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote... |
| Vendor | Microsoft |
| Product | 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 |
| Added Date | 2022-02-15T00:00:00.000Z |
| Cvss Score | 7.5 |
| Epss Score | None |
| Cvss Severity | HIGH |
| Epss Percentile | None |
| Used In Malware | yes |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-23 11:13 UTC
| Updated: 2026-06-23 11:13 UTC
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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