CVE-2026-85447: MOOS-IvP pRealm through version 24.8.1 accepts unbounded REALMCAST_REQ subscriptions without validating durati

Q: How do I fix CVE-2026-85447?

moos-ivp: upgrade to 24.8.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-85447 being exploited?

CVE-2026-85447 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-2026-85447 affect?

CVE-2026-85447 affects moos-ivp. Severity is high (CVSS 7.5). MOOS-IvP pRealm through version 24.8.1 accepts unbounded REALMCAST_REQ subscriptions without validating duration or variable list limits. Attackers can register long-lived pipeways with many variables to cause pRealm to generate excessive o

Q: How urgent is CVE-2026-85447?

Priority 45/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2026-85447 is a high-severity flaw (CVSS 7.5) affecting moos-ivp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MOOS-IvP pRealm through version 24.8.1 accepts unbounded REALMCAST_REQ subscriptions without validating duration or variable list limits. Attackers can register long-lived pipeways with many variables to cause pRealm to generate excessive output indefinitely, exhausting system resources.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-770
Published	2026-09-03
Last modified	2026-10-14

Publisher (CNA): VulnCheck · Vendor: mit

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-03 23:17 UTCPublished CVE record published
2026-10-14 23:31 UTCUpdated Record last modified

mit moos-ivp UPGRADE

Affected: < 24.8.1

Fixed in: 24.8.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy moos-ivp || rpm -q moos-ivp || moos-ivp --version

2. UPGRADE to 24.8.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade moos-ivp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade moos-ivp

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-2026-85447?

moos-ivp: upgrade to 24.8.1. Exact commands for each OS are on this page.

Is CVE-2026-85447 being exploited?

CVE-2026-85447 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-2026-85447 affect?

CVE-2026-85447 affects moos-ivp. Severity is high (CVSS 7.5). MOOS-IvP pRealm through version 24.8.1 accepts unbounded REALMCAST_REQ subscriptions without validating duration or variable list limits. Attackers can register long-lived pipeways with many variables to cause pRealm to generate excessive o

How urgent is CVE-2026-85447?

Priority 45/100. High severity; Remotely exploitable, no login, no user action

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References

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