CVE-2025-32399: An Unchecked Input for Loop Condition in RT-Labs P-Net version 1.0.1 or earlier allows an attacker to cause IO

Q: How do I fix CVE-2025-32399?

p-net: upgrade to 1.0.2. Exact commands for each OS are on this page.

Q: Is CVE-2025-32399 being exploited?

CVE-2025-32399 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-32399 affect?

CVE-2025-32399 affects p-net. Severity is medium (CVSS 5.3). An Unchecked Input for Loop Condition in RT-Labs P-Net version 1.0.1 or earlier allows an attacker to cause IO devices that use the library to enter an infinite loop by sending a malicious RPC packet.

Q: How urgent is CVE-2025-32399?

Priority 34/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2025-32399 is a medium-severity flaw (CVSS 5.3) affecting p-net. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An Unchecked Input for Loop Condition in RT-Labs P-Net version 1.0.1 or earlier allows an attacker to cause IO devices that use the library to enter an infinite loop by sending a malicious RPC packet.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-606, CWE-1284
Published	2025-05-07
Last modified	2026-06-17

Publisher (CNA): Nozomi Networks Inc. · Vendor: rt-labs

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-05-07 07:15 UTCPublished CVE record published
2026-06-17 09:11 UTCUpdated Record last modified

rt-labs p-net UPGRADE

Affected: < 1.0.2

Fixed in: 1.0.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy p-net || rpm -q p-net || p-net --version

2. UPGRADE to 1.0.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade p-net

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade p-net

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-32399?

p-net: upgrade to 1.0.2. Exact commands for each OS are on this page.

Is CVE-2025-32399 being exploited?

CVE-2025-32399 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-32399 affect?

CVE-2025-32399 affects p-net. Severity is medium (CVSS 5.3). An Unchecked Input for Loop Condition in RT-Labs P-Net version 1.0.1 or earlier allows an attacker to cause IO devices that use the library to enter an infinite loop by sending a malicious RPC packet.

How urgent is CVE-2025-32399?

Priority 34/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-32405 HIGH 7.5 UPGRADE An Out-of-bounds Write in RT-Labs P-Net version 1.0.1 or earlier allows an attacker to induce a crash in IO de
CVE-2025-32404 MEDIUM 4.8 UPGRADE An Out-of-bounds Write in RT-Labs P-Net version 1.0.1 or earlier allows an attacker to corrupt the memory of I
CVE-2025-32403 MEDIUM 4.8 UPGRADE An Out-of-bounds Write in RT-Labs P-Net version 1.0.1 or earlier allows an attacker to corrupt the memory of I
CVE-2025-32402 HIGH 7.5 UPGRADE An Out-of-bounds Write in RT-Labs P-Net version 1.0.1 or earlier allows an attacker to induce a crash in IO de
CVE-2025-32401 MEDIUM 4.8 UPGRADE An Heap-based Buffer Overflow in RT-Labs P-Net version 1.0.1 or earlier allows an attacker to corrupt the memo

References

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