Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2011-2444

Flash Player Cross-Site Scripting

Adobe / Flash Player

Severity
CVSS 4.3 · Medium
Confidence
High
Exploit status
Exploited in the wild
EPSS
2.7%
First observed
Last observed

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2011-2444 is an unauthenticated vulnerability affecting Adobe Flash Player. Cross-site scripting (XSS) vulnerability in Adobe Flash Player before 10.3.183.10 on Windows, Mac OS X, Linux, and Solaris, and before...

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.

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 Cross-Site Scripting

Cross-site scripting (XSS) vulnerability in Adobe Flash Player before 10.3.183.10 on Windows, Mac OS X, Linux, and Solaris, and before 10.3.186.7 on Android, allows remote attackers to inject arbitrary web script or HTML via a crafted URL, related to a "universal cross-site scripting issue," as exploited in the wild in September 2011.

View vendor advisory (opens in new tab)
Published
22 Sep 2011
Exploitation Reported
22 Sep 2011
Attack vector
Remote
Complexity
Privileges
None
User interaction

Tags

macos android windows linux

CVE References

Exploitation evidence

Why KEV Intelligence 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 22 Sep 2011

Independent exploitation attestation added to the KEV Intelligence record.

Known exploited vulnerability sources

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

Learn about Pro API access
Source Added
CVE First 2011-09-22 01:00 UTC

Detection

Operational artifacts and observed signals

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

Observed signals

Request targets
0
User-Agents
0

Raw values available in Pro and Enterprise.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

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

Learn about virtual patches →

No detection artifacts or sensor request patterns are available for this CVE yet.

Check back as sensor telemetry and scanner integrations are updated.

Risk and context

Severity, weaknesses, and research context

CVSS v2.0

4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS

2.7%

Timeline

From disclosure to observed exploitation

  1. Added to KEV Intelligence KEV Feed

    High-confidence, third-party attested exploitation

  2. CVE published

    Vulnerability disclosed publicly

  3. 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.

  • 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-2011-2444

Free JSON includes basic KEV fields
{
  "cve_id": "CVE-2011-2444",
  "confidence": "High",
  "cvss_score": 4.3,
  "cvss_estimated": false,
  "epss_score": 0.02701,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

Early warning alerts

Get alerts on high-impact exploitation

Receive curator-selected alerts when exploitation activity warrants attention. Each alert includes the evidence and context needed to decide what requires attention now.

Occasional high-impact alerts. Unsubscribe anytime. See our Privacy Policy.