Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2014-0497

Flash Player

Adobe / Flash Player · affected before 11.7.700.261

Watch CVE-2014-0497 Browse KEV feed
Severity
CVSS 9.8 · Critical
Confidence
Confirmed
Exploit status
Exploited in the wild
EPSS
99.9%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2014-0497 is an unauthenticated vulnerability affecting Adobe Flash Player. Integer underflow in Adobe Flash Player before 11.7.700.261 and 11.8.x through 12.0.x before 12.0.0.44 on Windows and Mac OS X, and...

Is it exploited?

Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is confirmed. Listed in CISA KEV.

Who is affected?

Adobe / Flash Player affected before 11.7.700.261.

What should we do?

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

Overview

Flash Player

Integer underflow in Adobe Flash Player before 11.7.700.261 and 11.8.x through 12.0.x before 12.0.0.44 on Windows and Mac OS X, and before 11.2.202.336 on Linux, allows remote attackers to execute arbitrary code via unspecified vectors.

adobe Affected
flash_player
Before 11.7.700.261 Through 12.0.0.44
View vendor advisory (opens in new tab)
Published
05 Feb 2014
Exploitation Reported
17 Sep 2024
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

metasploit windows cisa macos linux nessus_scanner

CVE References

  • CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2014-0497
  • SUSE-SU-2014:0221 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00006...
  • RHSA-2014:0137 rhn.redhat.com · Vendor Advisory http://rhn.redhat.com/errata/RHSA-2014-0137.html
  • openSUSE-SU-2014:0203 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00001...
  • openSUSE-SU-2014:0197 lists.opensuse.org · Vendor Advisory http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00000...
  • 56799 secunia.com · Third-Party Advisory http://secunia.com/advisories/56799
  • 56737 secunia.com · Third-Party Advisory http://secunia.com/advisories/56737
  • 56437 secunia.com · Third-Party Advisory http://secunia.com/advisories/56437
  • 56780 secunia.com · Third-Party Advisory http://secunia.com/advisories/56780
  • 56839 secunia.com · Third-Party Advisory http://secunia.com/advisories/56839
  • 33212 exploit-db.com · Exploit http://www.exploit-db.com/exploits/33212
  • 102849 osvdb.org · VDB Entry http://www.osvdb.org/102849
  • 65327 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/65327
  • 1029715 securitytracker.com · VDB Entry http://www.securitytracker.com/id/1029715
  • adobe-flash-cve20140497-code-exec(90884) exchange.xforce.ibmcloud.com · VDB Entry https://exchange.xforce.ibmcloud.com/vulnerabilities/90884
  • helpx.adobe.com/security/products/flash-player/apsb14-04.html helpx.adobe.com · CVE Record http://helpx.adobe.com/security/products/flash-player/apsb14-04.html
  • googlechromereleases.blogspot.com/2014/02/stable-channel-update.html googlechromereleases.blogspot.com · CVE Record http://googlechromereleases.blogspot.com/2014/02/stable-channel-updat...

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

CISA

Recorded 17 Sep 2024

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.

Learn about Pro API access
Source Added
CISA First 2024-09-17 00:00 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_avm2.rb 28 Apr 2025
Nessus https://www.tenable.com/plugins/nessus/75246 17 Sep 2024

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

9.8 Critical

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

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

99.9%

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

Weaknesses

Integer Underflow (Wrap or Wraparound) CWE-191

All CVSS Scores

CVSS v3.1 9.8 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 10.0 High

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

Potential Proof of Concepts

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

adobe_flash_avm2

metasploit · Created Unknown

Metasploit module for CVE-2014-0497

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. 21:19 UTC

    Nessus plugin available

    Scanner coverage available

  4. 00:00 UTC

    Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  5. 02:00 UTC

    CVE published

    Vulnerability disclosed publicly

  6. 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.

Start 14-day Pro trial Read API docs
  • 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-2014-0497

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2014-0497",
  "confidence": "Confirmed",
  "cvss_score": 9.8,
  "cvss_estimated": false,
  "epss_score": 0.99879,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}