What it is
CVE-2025-24813 is an unauthenticated vulnerability affecting Apache Tomcat. Path Equivalence: 'file.Name' (Internal Dot) leading to Remote Code Execution and/or Information disclosure and/or malicious content added to...
Vulnerability report
Exploited in the wild
Confirmed confidence
In CISA KEV
CVE-2025-24813
Apache Tomcat Remote Code Execution
Apache Tomcat · 11.0.0-M1 to <= 11.0.2
- 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.
Is it exploited?
Yes. Previdian tracks this CVE as a known exploited vulnerability. Confidence is confirmed. Listed in CISA KEV. Also confirmed by third-party sources.
Who is affected?
Apache Tomcat 11.0.0-m1 to <= 11.0.2.
What should we do?
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
Overview
Apache Tomcat Remote Code Execution
Path Equivalence: 'file.Name' (Internal Dot) leading to Remote Code Execution and/or Information disclosure and/or malicious content added to uploaded files via write enabled Default Servlet in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.2, from 10.1.0-M1 through 10.1.34, from 9.0.0.M1 through 9.0.98. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected.
If all of the following were true, a malicious user was able to view security sensitive files and/or inject content into those files: - writes enabled for the default servlet (disabled by default) - support for partial PUT (enabled by default) - a target URL for security sensitive uploads that was a sub-directory of a target URL for public uploads - attacker knowledge of the names of security sensitive files being uploaded - the security sensitive files also being uploaded via partial PUT
If all of the following were true, a malicious user was able to perform remote code execution: - writes enabled for the default servlet (disabled by default) - support for partial PUT (enabled by default) - application was using Tomcat's file based session persistence with the default storage location - application included a library that may be leveraged in a deserialization attack
Users are recommended to upgrade to version 11.0.3, 10.1.35 or 9.0.99, which fixes the issue.
Vendor
Product
Affected
Status
Apache Software Foundation
Affected
Apache Tomcat
Through 11.0.2
Through 10.1.34
Through 9.0.98
Through 8.5.100
Affected
- Published
- 10 Mar 2025
- Exploitation Reported
- 01 Apr 2025
- Attack vector
- Remote
- Complexity
- Low
- Privileges
- None
- User interaction
- None
Tags
nessus_scanner
windows
apache
metasploit
nuclei_scanner
cisa
CVE References
- CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2025-24813
- Apache Mailing List lists.apache.org · Vendor Advisory https://lists.apache.org/thread/j5fkjv2k477os90nczf2v9l61fb0kkgq
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
A trusted third party reported exploitation.
Proof of concept available
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 | 2025-04-01 00:00 UTC |
| The Shadowserver | 2026-07-05 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
Nessus template detected 02 Jun 2025.
View Nessus template (opens in new tab)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 |
|---|---|---|
| Nessus | https://www.tenable.com/plugins/nessus/237016 | 02 Jun 2025 |
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/tomcat_partial_put_deserialization.rb | 28 Apr 2025 |
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-24813.yaml | 25 Apr 2025 |
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
Recent mention · RecordedFuture
August 2026 CVE Landscape
In August 2026, Insikt Group® identified 73 high-impact vulnerabilities that should be prioritized for remediation, 43 of which had a Very Critical Recorded Future Risk Score. This represents a 14% decrease from last month.
Read full advisoryPotential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
Apache Tomcat partial PUT session deserialization RCE
pruva · Created 2026-07-11 13:12:49 UTC
Severity: CRITICAL | CVE: CVE-2025-24813 | Package: Apache Tomcat
Apache Tomcat partial PUT session deserialization RCE
pruva · Created 2026-07-11 13:12:49 UTC
Severity: CRITICAL | CVE: CVE-2025-24813 | Package: Apache Tomcat
Apache Tomcat Path Equivalence - Remote Code Execution
nuclei · Created Unknown
tomcat_partial_put_deserialization
metasploit · Created Unknown
Metasploit module for CVE-2025-24813
Timeline
From disclosure to observed exploitation
-
00:00 UTC
KEV confirmed by The Shadowserver
Exploitation attested by an external source
-
09:39 UTC
Nessus plugin available
Scanner coverage available
-
15:02 UTC
Metasploit module available
Exploit module available
-
15:02 UTC
Public PoC available
Public proof-of-concept code published
-
00:00 UTC
Nuclei template available
Scanner coverage available
-
00:00 UTC
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
16:44 UTC
CVE published
Vulnerability disclosed publicly
-
08:51 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.
- 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-2025-24813
Free JSON includes basic KEV fields{
"cve_id": "CVE-2025-24813",
"confidence": "Confirmed",
"cvss_score": 9.8,
"cvss_estimated": false,
"epss_score": 0.99927,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "attempts": 0, "sensors": 0 }
}