Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2006-1547

Struts Denial of Service

Apache / Struts

Watch CVE-2006-1547 Browse KEV feed
Severity
CVSS 7.5 · High
Confidence
Confirmed
Exploit status
Exploited in the wild
EPSS
54.6%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2006-1547 is an unauthenticated vulnerability affecting Apache Struts. ActionForm in Apache Software Foundation (ASF) Struts before 1.2.9 with BeanUtils 1.7 allows remote attackers to cause a denial of service via...

Is it exploited?

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

Who is affected?

Apache / Struts.

What should we do?

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

Overview

Struts Denial of Service

ActionForm in Apache Software Foundation (ASF) Struts before 1.2.9 with BeanUtils 1.7 allows remote attackers to cause a denial of service via a multipart/form-data encoded form with a parameter name that references the public getMultipartRequestHandler method, which provides further access to elements in the CommonsMultipartRequestHandler implementation and BeanUtils.

View vendor advisory (opens in new tab)
Published
30 Mar 2006
Exploitation Reported
21 Jan 2022
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

apache cisa

CVE References

  • CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2006-1547
  • SUSE-SR:2006:010 lists.suse.com · Vendor Advisory http://lists.suse.com/archive/suse-security-announce/2006-May/0004.html
  • 19493 secunia.com · Third-Party Advisory http://secunia.com/advisories/19493
  • 20117 secunia.com · Third-Party Advisory http://secunia.com/advisories/20117
  • 1015856 securitytracker.com · VDB Entry http://securitytracker.com/id?1015856
  • ADV-2006-1205 vupen.com · VDB Entry http://www.vupen.com/english/advisories/2006/1205
  • 17342 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/17342
  • struts-actionform-dos(25613) exchange.xforce.ibmcloud.com · VDB Entry https://exchange.xforce.ibmcloud.com/vulnerabilities/25613
  • struts.apache.org/struts-doc-1.2.9/userGuide/release-notes.html struts.apache.org · CVE Record http://struts.apache.org/struts-doc-1.2.9/userGuide/release-notes.html
  • issues.apache.org/bugzilla/show_bug.cgi issues.apache.org · CVE Record http://issues.apache.org/bugzilla/show_bug.cgi?id=38534

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 21 Jan 2022

A trusted third party reported exploitation.

Known exploited vulnerability sources

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

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Source Added
CISA First 2022-01-21 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.

Scanner coverage

No scanner integrations recorded yet.

Virtual patch status

No Previdian 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 v3.1

7.5 High

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:N/I:N/A:H

EPSS

54.6%

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

Weaknesses

Exposed Dangerous Method or Function CWE-749

All CVSS Scores

CVSS v3.1 7.5 High

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

CVSS v2.0 7.8 High

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

Timeline

From disclosure to observed exploitation

  1. 00:00 UTC

    Added to CISA KEV

    Listed in the CISA Known Exploited Vulnerabilities catalog

  2. 22:00 UTC

    CVE published

    Vulnerability disclosed publicly

  3. 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-2006-1547

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2006-1547",
  "confidence": "Confirmed",
  "cvss_score": 7.5,
  "cvss_estimated": false,
  "epss_score": 0.54635,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}