CVE-2026-85451: MOOS core-moos through 10.4.0 contains a remote process termination vulnerability in the SuicidalSleeper compo

Q: How do I fix CVE-2026-85451?

core-moos: upgrade to 10.4.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-85451 being exploited?

CVE-2026-85451 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-2026-85451 affect?

CVE-2026-85451 affects core-moos. Severity is high (CVSS 7.1). MOOS core-moos through 10.4.0 contains a remote process termination vulnerability in the SuicidalSleeper component that uses a hard-coded passphrase for multicast command authorization. Any multicast-reachable peer can enumerate MOOS proces

Routine

HIGH 7.1UPGRADE

CVE-2026-85451 is a high-severity flaw (CVSS 7.1) affecting core-moos. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MOOS core-moos through 10.4.0 contains a remote process termination vulnerability in the SuicidalSleeper component that uses a hard-coded passphrase for multicast command authorization. Any multicast-reachable peer can enumerate MOOS processes and send termination commands to trigger process shutdown by exploiting the default multicast group and port with the known passphrase.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-798
Published	2026-09-03
Last modified	2026-10-14

Publisher (CNA): VulnCheck · Vendor: themoos

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 23:32 UTCUpdated Record last modified

themoos core-moos UPGRADE

Affected: < 10.4.0

Fixed in: 10.4.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 10.4.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade core-moos

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-2026-85451?

core-moos: upgrade to 10.4.0. Exact commands for each OS are on this page.

Is CVE-2026-85451 being exploited?

CVE-2026-85451 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-2026-85451 affect?

CVE-2026-85451 affects core-moos. Severity is high (CVSS 7.1). MOOS core-moos through 10.4.0 contains a remote process termination vulnerability in the SuicidalSleeper component that uses a hard-coded passphrase for multicast command authorization. Any multicast-reachable peer can enumerate MOOS proces

How urgent is CVE-2026-85451?

Priority 32/100. High severity

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References

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