Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2013-0634

Flash Player Denial of Service

Adobe / Flash Player

Watch CVE-2013-0634 Browse KEV feed
Severity
CVSS 9.3 · High
Confidence
High
Exploit status
Exploited in the wild
EPSS
77.6%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2013-0634 is an unauthenticated vulnerability affecting Adobe Flash Player. Adobe Flash Player before 10.3.183.51 and 11.x before 11.5.502.149 on Windows and Mac OS X, before 10.3.183.51 and 11.x before...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is high. Also confirmed by third-party sources.

Who is affected?

Adobe / Flash Player.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

Flash Player Denial of Service

Adobe Flash Player before 10.3.183.51 and 11.x before 11.5.502.149 on Windows and Mac OS X, before 10.3.183.51 and 11.x before 11.2.202.262 on Linux, before 11.1.111.32 on Android 2.x and 3.x, and before 11.1.115.37 on Android 4.x allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted SWF content, as exploited in the wild in February 2013.

View vendor advisory (opens in new tab)
Published
08 Feb 2013
Exploitation Reported
08 Feb 2013
Attack vector
Remote
Complexity
—
Privileges
None
User interaction
—

Tags

linux macos android metasploit windows

CVE References

  • CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2013-0634
  • RHSA-2013:0243 rhn.redhat.com · Vendor Advisory http://rhn.redhat.com/errata/RHSA-2013-0243.html
  • openSUSE-SU-2013:0279 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2013-02/msg00004...
  • SUSE-SU-2013:0288 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2013-02/msg00007...
  • openSUSE-SU-2013:0284 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2013-02/msg00006...
  • adobe.com/support/security/bulletins/apsb13-04.html adobe.com · CVE Record http://www.adobe.com/support/security/bulletins/apsb13-04.html

Exploitation evidence

Why Previdian marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CVE

Recorded 08 Feb 2013

A trusted third party reported exploitation.

Proof of concept available

Recorded 28 Apr 2025

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the Previdian Pro API.

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Source Added
CVE First 2013-02-08 11:00 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
User-Agents
Callback hosts
0
0
0

Request targets and User-Agents available in Pro. Callback host details available in Enterprise.

Virtual patch status

No Previdian virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Metasploit https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/browser/adobe_flash_regex_value.rb 28 Apr 2025

Risk and context

Severity, weaknesses, and research context

CVSS v2.0

9.3 High

Potential damage if exploited. Separate from whether attackers are using it.

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS

77.6%

Estimated chance of exploitation in the next 30 days. Previdian's warning comes from evidence, not this score.

Weaknesses

Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-119

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

adobe_flash_regex_value

metasploit · Created Unknown

Metasploit module for CVE-2013-0634

Timeline

From disclosure to observed exploitation

  1. 15:02 UTC

    Metasploit module available

    Exploit module available

  2. 15:02 UTC

    Public PoC available

    Public proof-of-concept code published

  3. 11:00 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  4. 11:00 UTC

    CVE published

    Vulnerability disclosed publicly

  5. 00:00 UTC

    CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2013-0634

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2013-0634",
  "confidence": "High",
  "cvss_score": 9.3,
  "cvss_estimated": false,
  "epss_score": 0.77597,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}