Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2024-53677

Apache Struts Remote Code Execution

Apache Struts · affected before 6.4.0

Watch CVE-2024-53677 Browse KEV feed
Severity
CVSS 9.5 · Critical
Confidence
High
Exploit status
Exploited in the wild
EPSS
70.1%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2024-53677 is an unauthenticated vulnerability affecting Apache Struts. File upload logic in Apache Struts is flawed. An attacker can manipulate file upload params to enable paths traversal and under some...

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?

Apache Struts affected before 6.4.0.

What should we do?

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

Overview

Apache Struts Remote Code Execution

File upload logic in Apache Struts is flawed. An attacker can manipulate file upload params to enable paths traversal and under some circumstances this can lead to uploading a malicious file which can be used to perform Remote Code Execution.

This issue affects Apache Struts: from 2.0.0 before 6.4.0.

Users are recommended to upgrade to version 6.4.0 at least and migrate to the new file upload mechanism https://struts.apache.org/core-developers/file-upload . If you are not using an old file upload logic based on FileuploadInterceptor your application is safe.

You can find more details in  https://cwiki.apache.org/confluence/display/WW/S2-067

Apache Software Foundation Affected
Before 6.4.0
View vendor advisory (opens in new tab)
Published
11 Dec 2024
Exploitation Reported
11 Dec 2024
Attack vector
Remote
Complexity
High
Privileges
None
User interaction
None

CVE References

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

The Shadowserver

Recorded 11 Dec 2024

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
The Shadowserver First 2024-12-11 15:35 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 v4.0

9.5 Critical

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

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:N/AU:Y/R:A/V:C/RE:L/U:Red

EPSS

70.1%

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

Weaknesses

Unrestricted Upload of File with Dangerous Type CWE-434

Timeline

From disclosure to observed exploitation

  1. 15:35 UTC

    CVE published

    Vulnerability disclosed publicly

  2. 15:35 UTC

    Added to Previdian KEV Feed

    High-confidence, third-party attested exploitation

  3. 17:02 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-2024-53677

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2024-53677",
  "confidence": "High",
  "cvss_score": 9.5,
  "cvss_estimated": false,
  "epss_score": 0.70143,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}