CVE-2024-27141Public exploitNetwork attack vector

Unauthenticated service interruption via recursive XML entities

Published Jun 14, 2024 · Updated Feb 13, 2025

XML entity expansion in Toshiba Tec e-STUDIO MFPs allows remote attackers to interrupt printer service through unauthenticated HTTP requests. The /contentwebserver endpoint passes attacker-controlled DTD entities to the XML parser in mod_contentwebserver.so, allowing recursive expansion to consume CPU. Network access to the API is sufficient; increasingly complex entity payloads drive CPU use to 100% and stop printer operation.

CVSS severity5.9
Medium
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XML entity expansion in Toshiba Tec e-STUDIO MFPs allows remote attackers to interrupt printer service through unauthenticated HTTP requests. The /contentwebserver endpoint passes attacker-controlled DTD entities to the XML parser in mod_contentwebserver.so, allowing recursive expansion to consume CPU. Network access to the API is sufficient; increasingly complex entity payloads drive CPU use to 100% and stop printer operation.

The record

CVE
CVE-2024-27141
Published
Jun 14, 2024
Updated
Feb 13, 2025
Vendor
Toshiba Tec Corporation
Product
e-STUDIO3525AC
Classifications
CWE-776, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=*

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Toshiba Tec Corporation · e-STUDIO3525ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2610ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO3028Aversion=0 <=*
Toshiba Tec Corporation · e-STUDIO6529Aversion=0 <=*
Toshiba Tec Corporation · e-STUDIO400ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO6528Aversion=0 <=*
Toshiba Tec Corporation · e-STUDIO4525ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO6526ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2520NCversion=0 <=*
Toshiba Tec Corporation · e-STUDIO4528AGversion=0 <=*
Toshiba Tec Corporation · e-STUDIO3015NCversion=0 <=*
Toshiba Tec Corporation · e-STUDIO9029Aversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2020ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO4528Aversion=0 <=*
Toshiba Tec Corporation · e-STUDIO4615ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2528Aversion=0 <=*
Toshiba Tec Corporation · e-STUDIO3615NCversion=0 <=*
Toshiba Tec Corporation · e-STUDIO5528Aversion=0 <=*
Toshiba Tec Corporation · e-STUDIO3525ACGversion=0 <=*
Toshiba Tec Corporation · e-STUDIO5525ACGversion=0 <=*
Toshiba Tec Corporation · e-STUDIO3025ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO3515NCversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2525ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO3528Aversion=0 <=*
Toshiba Tec Corporation · e-STUDIO6527ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2021ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2015NCversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2010ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO7527ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO3115NCversion=0 <=*
Toshiba Tec Corporation · e-STUDIO330ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2615NCversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2515NCversion=0 <=*
Toshiba Tec Corporation · e-STUDIO5525ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO4515ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO7529Aversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2110ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2510ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO2521ACversion=0 <=*
Toshiba Tec Corporation · Toshiba Tec e-STUDIOversion=see the reference URL
Toshiba Tec Corporation · e-STUDIO6525ACGversion=0 <=*
Toshiba Tec Corporation · e-STUDIO6525ACversion=0 <=*
Toshiba Tec Corporation · e-STUDIO3528AGversion=0 <=*

Published CVSS scores

5.9Toshiba CorporationCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-776Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

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