CVE-2016-7256 (GCVE-0-2016-7256)
Vulnerability from cvelistv5 – Published: 2016-11-10 06:16 – Updated: 2025-10-21 23:55Summary
atmfd.dll in the Windows font library in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, and 1607, and Windows Server 2016 allows remote attackers to execute arbitrary code via a crafted web site, aka "Open Type Font Remote Code Execution Vulnerability."
Severity
8.8 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-10 16:40 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://twitter.com/da5ch0/status/820161895269277696 | x_refsource_MISC |
| http://www.securitytracker.com/id/1037243 | vdb-entryx_refsource_SECTRACK |
| https://docs.microsoft.com/en-us/security-updates… | vendor-advisoryx_refsource_MS |
| http://www.securityfocus.com/bid/94156 | vdb-entryx_refsource_BID |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Date Public
2016-11-08 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: a3f8b855-934c-4a02-8e40-ab506d1f6450
Exploited: Yes
Timestamps
First Seen: 2022-05-25
Asserted: 2022-05-25
Scope
Notes: KEV entry: Microsoft Windows Open Type Font Remote Code Execution Vulnerability | Affected: Microsoft / Windows | Description: A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. An attacker who successfully exploits this vulnerability could take control of the affected system. | Required action: Apply updates per vendor instructions. | Due date: 2022-06-15 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2016-7256
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-284 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Windows |
| Due Date | 2022-06-15 |
| Date Added | 2022-05-25 |
| Vendorproject | Microsoft |
| Vulnerabilityname | Microsoft Windows Open Type Font Remote Code Execution Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-02-02 12:27 UTC
| Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 3a4781f4-8b48-4c23-bdca-8eb783137464
Exploited: Yes
Timestamps
First Seen: 2022-05-25
Asserted: 2022-05-25
Scope
Notes: KEVIntel entry: atmfd.dll in the Windows font library in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows... | Affected: Microsoft / Windows | CVSS: 8.8 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | atmfd.dll in the Windows font library in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows... |
| Vendor | Microsoft |
| Product | Windows |
| Added Date | 2022-05-25T00:00:00.000Z |
| Cvss Score | 8.8 |
| Epss Score | None |
| Cvss Severity | HIGH |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-23 14:05 UTC
| Updated: 2026-07-10 06:14 UTC
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"value": "atmfd.dll en la fuente de biblioteca Windows en Microsoft Windows Vista SP2, Windows Server 2008 SP2 y R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold y R2, Windows RT 8.1, Windows 10 Gold, 1511 y 1607 y Windows Server 2016 permite a atacantes remotos ejecutar un c\u00f3digo arbitrario a trav\u00e9s de de un sitio web manipulado, vulnerabilidad tambi\u00e9n conocida como \"Open Type Font Remote Code Execution Vulnerability\"."
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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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