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Vulnerabilities/CVE-2013-2551Public Intelligence Dossier
Source: microsoft · Limited verification•Last verified: •Collection Degraded
CVE-2013-2551ListedHIGH (raw)CVSS 9.3CWE-416

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 10 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, as demonstrated by VUPEN during a Pwn2Own competition at CanSecWest 2013, aka "Internet Explorer Use After Free Vulnerability," a different vulnerability than CVE-2013-1308 and CVE-2013-1309.

Published: 11 Mar 2013•Last updated: 17 Jun 2026, 05:23 AM IST•Source identifier: cve@mitre.org
Dossier completeness: source-provided sections 3 / 3 · rule guidance available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Listed
Added28 Mar 2022
Due18 Apr 2022
RansomwareKnown
CVSS score
9.3HIGH (raw)
AV:N/AC:M/Au:N/C:C/I:C/A:C
Metric sourcenvd@nist.gov
EPSS probability
74.1%0.741
Percentile99th
Weakness type
CWE-416
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 10 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, as demonstrated by VUPEN during a Pwn2Own competition at CanSecWest 2013, aka "Internet Explorer Use After Free Vulnerability," a different vulnerability than CVE-2013-1308 and CVE-2013-1309.

SOC priority

Immediate Attention

Actively exploited (source statement)

Yes

Publicly disclosed

Unknown

Risk basis: CISA KEV exploitation signal; Microsoft or Microsoft-managed product relevance; HIGH severity; Source-confirmed exploitation or CISA KEV/ransomware metadata

Affected Products & Remediation

1 source-backed product
Affected products and versions (source)
  • microsoft internet explorer · 6; 7; 8; 9; 10 · NVD CPE · Source
NVD applicability prerequisites: cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:professional:*:x64:*, cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*, cpe:2.3:o:microsoft:windows_8:-:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:*. These are conditions, not proof that an environment is exposed or unaffected.
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

  • CISA KEV: Apply updates per vendor instructions.

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Listed
Exploited (source statement)
Yes
Publicly disclosed (source)
Unknown

CISA required action: Apply updates per vendor instructions.

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

Matched kev-network-exposure (CVSS AV:N, CISA KEV Listed)

Exposure

  1. Identify assets with the exact CVE and confirm the affected product/version against the advisory.Telemetry: DeviceTvmSoftwareVulnerabilities · KEV listing raises urgency, but inventory is needed to establish local exposure. · Rule kev-network-exposure

Exploitation evidence

  1. Review relevant edge or application access logs for unusual requests around the advisory window.Telemetry: CommonSecurityLog · Log review is a hunting hypothesis; KEV listing alone does not show local exploitation. · Rule kev-network-exposure

Response

  1. Recheck the affected assets after the source-stated mitigation or update is applied.Telemetry: DeviceTvmSoftwareVulnerabilities · A follow-up inventory check verifies local remediation. · Rule kev-network-exposure

CISA KEV Record

Catalog entry
28 Mar 2022
Required action due
18 Apr 2022
Known ransomware use
Known

Apply updates per vendor instructions.

Change History & Source Data

— No recorded material change

CNA / source
cve@mitre.org
Record status · verification
UPDATED · CISA KEV confirmed
CPE
cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:professional:*:x64:*, cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*, cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*, cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*, cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*

Evidence & Provenance

4 public sources
CISA KEV CatalogAdded 2022-03-28docs.microsoft.comSource recordnvd.nist.govSource recordoval.cisecurity.orgSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2013-2551
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2013-2551
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2013-2551"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
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Correlated briefings

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.