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CVE-2026-44632

Spaceapplications Yamcs remote code execution

9.1 CRITICALPublic exploitEPSS 1.12%
  1. Published16 Jul 2026

Description

Yamcs is a mission control framework. Prior to 5.12.7, a server-side code injection vulnerability existed in the Yamcs algorithm evaluation engine org.yamcs.algorithms.JavaExprAlgorithmExecutionFactory, which dynamically compiled and evaluated user-controlled algorithm text through the Janino compiler without enforcing a secure sandbox, so an authenticated user with the ChangeMissionDatabase privilege could override an existing algorithm's text via the mission database REST API and inject Java code (for example using java.lang.Runtime) to achieve remote code execution on the underlying host operating system. This issue is fixed in versions 5.12.7 and 5.13.0, which disable algorithm editing by default.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected products

Spaceapplications Yamcs< 5.12.7

Remediation

Fixed in
Spaceapplications Yamcs≥ 5.12.7

References

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Frequently asked

Is CVE-2026-44632 being actively exploited?

CVE-2026-44632 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.12%.

How severe is CVE-2026-44632?

CVE-2026-44632 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 1.12% probability of exploitation.

Which products are affected by CVE-2026-44632?

Affected products include Spaceapplications Yamcs.

How do I fix CVE-2026-44632?

Upgrade affected software to a fixed version, for example Spaceapplications Yamcs 5.12.7 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-44632 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.