CVE-2025-32397Network attack vector

IO-device crash via IRInfoBlock out-of-bounds write

Published May 7, 2025 · Updated May 7, 2025

Heap-based buffer overflow in RT-Labs P-Net 1.0.1 and earlier allows remote attackers to crash IO devices with a malicious RPC packet. The RPC packet parser writes beyond a heap buffer while processing an IRInfoBlock, although the precise missing bounds check is not public. Network access to a device embedding the stack is sufficient; the published impact is a crash without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in RT-Labs P-Net 1.0.1 and earlier allows remote attackers to crash IO devices with a malicious RPC packet. The RPC packet parser writes beyond a heap buffer while processing an IRInfoBlock, although the precise missing bounds check is not public. Network access to a device embedding the stack is sufficient; the published impact is a crash without reported data disclosure or modification.

The record

CVE
CVE-2025-32397
Published
May 7, 2025
Updated
May 7, 2025
Vendor
RT-Labs
Product
P-Net
Classifications
CWE-122, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 2025CVE publishedPublication date reported by the CVE source.
  2. May 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <=1.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

RT-Labs · P-Netversion=0 <=1.0.1

Published CVSS scores

7.5Nozomi Networks Inc.CVSS:3.1/AV:N/AC:L/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1499.004Application or System Exploitation

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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