CVE-2014-1776 (GCVE-0-2014-1776)
Vulnerability from cvelistv5 – Published: 2014-04-27 10:00 – Updated: 2025-10-22 00:05Summary
Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to the CMarkup::IsConnectedToPrimaryMarkup function, as exploited in the wild in April 2014. NOTE: this issue originally emphasized VGX.DLL, but Microsoft clarified that "VGX.DLL does not contain the vulnerable code leveraged in this exploit. Disabling VGX.DLL is an exploit-specific workaround that provides an immediate, effective workaround to help block known attacks."
Severity
9.8 (Critical)
SSVC
Exploitation: active
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-10 19:31 UTC
CWE
- n/a
- CWE-416 - Use After Free
Assigner
References
13 references
| URL | Tags |
|---|---|
| http://securitytracker.com/id?1030154 | vdb-entryx_refsource_SECTRACK |
| http://www.osvdb.org/106311 | vdb-entryx_refsource_OSVDB |
| https://docs.microsoft.com/en-us/security-updates… | vendor-advisoryx_refsource_MS |
| http://blogs.technet.com/b/srd/archive/2014/04/30… | x_refsource_CONFIRM |
| http://secunia.com/advisories/57908 | third-party-advisoryx_refsource_SECUNIA |
| http://www.signalsec.com/cve-2014-1776-ie-0day-an… | x_refsource_MISC |
| http://www.fireeye.com/blog/uncategorized/2014/04… | x_refsource_MISC |
| http://www.kb.cert.org/vuls/id/222929 | third-party-advisoryx_refsource_CERT-VN |
| https://technet.microsoft.com/library/security/2963983 | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/67075 | vdb-entryx_refsource_BID |
| https://www.vicarius.io/vsociety/posts/cve-2014-1… | |
| https://www.vicarius.io/vsociety/posts/cve-2014-1… | |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Date Public
2014-04-26 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: a2b0c1bc-e30d-4c2c-9292-79e3c67c36ff
Exploited: Yes
Timestamps
First Seen: 2022-01-28
Asserted: 2022-01-28
Scope
Notes: KEV entry: Microsoft Internet Explorer Memory Corruption Vulnerability | Affected: Microsoft / Internet Explorer | Description: Microsoft Internet Explorer contains a memory corruption vulnerability that allows remote attackers to execute code in the context of the current user. | Required action: Apply updates per vendor instructions. | Due date: 2022-07-28 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://learn.microsoft.com/en-us/security-updates/SecurityBulletins/2014/ms14-021?redirectedfrom=MSDN; https://nvd.nist.gov/vuln/detail/CVE-2014-1776
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-416 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Internet Explorer |
| Due Date | 2022-07-28 |
| Date Added | 2022-01-28 |
| Vendorproject | Microsoft |
| Vulnerabilityname | Microsoft Internet Explorer Memory Corruption Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-02-02 12:28 UTC
| Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: dc3b058e-f338-403f-9a7a-3427d496a1a7
Exploited: Yes
Timestamps
First Seen: 2022-01-28
Asserted: 2022-01-28
Scope
Notes: KEVIntel entry: Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of... | Affected: Microsoft / Internet Explorer | CVSS: 9.8 (CRITICAL) | 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 | Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of... |
| Vendor | Microsoft |
| Product | Internet Explorer |
| Added Date | 2022-01-28T00:00:00.000Z |
| Cvss Score | 9.8 |
| Epss Score | None |
| Cvss Severity | CRITICAL |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-23 14:04 UTC
| Updated: 2026-07-10 06:14 UTC
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"id": "CVE-2014-1776",
"lastModified": "2024-12-19T19:32:20.190",
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"published": "2014-04-27T10:55:03.340",
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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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