CVE-2026-85437: MOOS-IvP through 24.8.1 contains multiple buffer overflow vulnerabilities in IvP function string decoders that

Q: How do I fix CVE-2026-85437?

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

Q: Is CVE-2026-85437 being exploited?

CVE-2026-85437 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-2026-85437 affect?

CVE-2026-85437 affects moos-ivp. Severity is critical (CVSS 9.8). MOOS-IvP through 24.8.1 contains multiple buffer overflow vulnerabilities in IvP function string decoders that trust attacker-controlled length fields without validation. Attackers can craft malicious encoded strings with mismatched declare

Q: How urgent is CVE-2026-85437?

Priority 61/100. Critical severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-85437 is a critical-severity flaw (CVSS 9.8) affecting moos-ivp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

MOOS-IvP through 24.8.1 contains multiple buffer overflow vulnerabilities in IvP function string decoders that trust attacker-controlled length fields without validation. Attackers can craft malicious encoded strings with mismatched declared and actual field lengths to overflow heap and stack buffers, potentially achieving remote code execution through MOOS variables or alog files.

Why this priority

Critical severity
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-787
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 23:28 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.

Exact fixes by distribution

Fedora 46 · ddnet · FIXED · 20.2-1.fc46 · FEDORA-2026-6991b4ab14 · source

sudo dnf upgrade --advisory=FEDORA-2026-6991b4ab14

Fedora ELN · libplacebo · FIXED · 7.360.1-5.eln159 · FEDORA-2026-92226f221e · source

sudo dnf upgrade --advisory=FEDORA-2026-92226f221e

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-2026-85437?

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

Is CVE-2026-85437 being exploited?

CVE-2026-85437 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-2026-85437 affect?

CVE-2026-85437 affects moos-ivp. Severity is critical (CVSS 9.8). MOOS-IvP through 24.8.1 contains multiple buffer overflow vulnerabilities in IvP function string decoders that trust attacker-controlled length fields without validation. Attackers can craft malicious encoded strings with mismatched declare

How urgent is CVE-2026-85437?

Priority 61/100. Critical severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

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References

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