Quick answers
- Is CVE-2026-85441 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-85441 being exploited in the wild.
- How severe is CVE-2026-85441?
- High severity, with a CVSS score of 7.5, published 3 September 2026.
- Which products and versions are affected?
- MOOS Core-Moos through 10.4.0.
- Is there a fix for CVE-2026-85441?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-85441 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-85441?
- Check whether you run MOOS Core-Moos at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a deserialization flaw in CMOOSMsg::operator>> that fails to validate that serialized string lengths are non-negative. An unauthenticated attacker can send a crafted network packet to the MOOSDB port with a negative length value in a string field. This causes the deserialization routine to throw an unhandled exception, terminating the MOOSDB process. The attack requires network access to the MOOSDB port but no authentication; it causes a denial-of-service condition affecting all MOOS clients dependent on the database service.
Affected products
- MOOS core-moos through 10.4.0
Timeline
- 2026-09-03: disclosed