CVE-2024-39927Network attack vector

Service interruption and data destruction via crafted request

Published Jul 10, 2024 · Updated Aug 2, 2024

Out-of-bounds write in Ricoh MFP and printer firmware allows remote attackers to interrupt service or destroy user data via a crafted request. Ricoh and JPCERT/CC have not disclosed the affected firmware locus, request format, or missing bounds check. Network access is sufficient without authentication or user interaction; consequences are limited to service interruption and partial data destruction, not code execution.

CVSS severity8.2
High
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Ricoh MFP and printer firmware allows remote attackers to interrupt service or destroy user data via a crafted request. Ricoh and JPCERT/CC have not disclosed the affected firmware locus, request format, or missing bounds check. Network access is sufficient without authentication or user interaction; consequences are limited to service interruption and partial data destruction, not code execution.

The record

CVE
CVE-2024-39927
Published
Jul 10, 2024
Updated
Aug 2, 2024
Vendor
Ricoh Company, Ltd.
Product
Ricoh IM 460F/460FTL/370/370F
Classifications
CWE-787, T1485, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=prior to System/Copy 1.10-00

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ricoh Company, Ltd. · Ricoh IM 460F/460FTL/370/370Fversion=prior to System/Copy 1.10-00
Ricoh Company, Ltd. · IM C2010version=0 <system\/copy_2.00-00
Ricoh Company, Ltd. · IM C4510version=0 <system\/copy_2.00-00
Ricoh Company, Ltd. · IM C7010version=0 <system\/copy_1.05-00; version=prior to System/Copy 1.05-00
Ricoh Company, Ltd. · Ricoh IM C2010/C2510version=prior to System/Copy 2.00-00
Ricoh Company, Ltd. · IM C3010version=0 <system\/copy_2.00-00
Ricoh Company, Ltd. · IM 460Fversion=0 <system\/copy_1.10-00
Ricoh Company, Ltd. · Ricoh IM C6010/C5510/C4510version=prior to System/Copy 2.00-00
Ricoh Company, Ltd. · IM C2510version=0 <system\/copy_2.00-00
Ricoh Company, Ltd. · IM C3510version=0 <system\/copy_2.00-00
Ricoh Company, Ltd. · IM 460FTLversion=0 <system\/copy_1.10-00
Ricoh Company, Ltd. · Ricoh IM C3010/C3510version=prior to System/Copy 2.00-00
Ricoh Company, Ltd. · IM 370version=0 <system\/copy_1.10-00
Ricoh Company, Ltd. · IM C5510version=0 <system\/copy_2.00-00
Ricoh Company, Ltd. · Ricoh IP C8510/C8510M/C8500/C8500Mversion=prior to System 1.04-00
Ricoh Company, Ltd. · IM 370Fversion=0 <system\/copy_1.10-00
Ricoh Company, Ltd. · IM C6010version=0 <system\/copy_2.00-00

Published CVSS scores

8.2GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1485Data Destruction
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

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Your stack

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