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TI-2026-58634 Aliases CVE-2026-85436GHSA-fj6h-5wvf-8fj2

MOOS essential-moos through 10.0.1 pMOOSBridge Heap Corruption via Negative UDP Length

Priority MEDIUM 48CWE-191Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-191 and the CVSS impact.

Summary

MOOS essential-moos through 10.0.1 contains a buffer overflow vulnerability in CMOOSUDPLink::ReadPktFromArray() that allows remote attackers to corrupt heap memory by sending UDP datagrams with negative declared lengths. Attackers can send crafted UDP packets to the configured UDPListen port to trigger an oversized memcpy operation that writes past the destination buffer, causing heap corruption and denial of service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02085 81st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
themoosessential-moosup to 10.0.1—No fix listedCNA
  • essential-moos Vendorthemoos Affected up to 10.0.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:themoos:essential-moos:*:*:*:*:*:*:*:*before 10.0.1Vulnerablethemoos
  • cpe:2.3:a:themoos:essential-moos:*:*:*:*:*:*:*:* Versions before 10.0.1 Vulnerable ·themoos

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-85436
  2. 2026-10-03 Alias added: GHSA-fj6h-5wvf-8fj2

References

Patch 3

Other 1

  • TI-2026-58629 MOOS essential-moos through 10.0.1 pMOOSBridge Unauthenticated UDP Packet Injection CVSS 4.0HIGH 8.7
  • TI-2026-58631 MOOS essential-moos through 10.0.1 pShare Unauthorized Runtime Route Reconfiguration CVSS 4.0CRITICAL 9.3
  • TI-2026-58628 MOOS essential-moos through 10.0.1 pShare Unauthenticated UDP Datagram Republishing CVSS 4.0HIGH 8.8
  • TI-2026-58625 MOOS essential-moos through 10.0.1 pAntler Remote Code Execution via Unauthenticated MISSION_FILE CVSS 4.0CRITICAL 9.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences