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TI-2026-85579 Aliases CVE-2026-123200GHSA-x3v7-qh5m-v37c

Out-of-bounds stack write in VRPN lets remote peers crash the process

Priority LOW 38CWE-129Published · 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-129 and the CVSS impact.

Summary

VRPN through 07.36 contains an out-of-bounds stack write caused by an unchecked length index (CWE-129). An unauthenticated remote peer can crash the process by connecting, completing the version-cookie exchange, and sending a SENDER_DESCRIPTION or TYPE_DESCRIPTION message with an out-of-range or negative index.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

VRPN through 07.36 contains an out-of-bounds stack write vulnerability in vrpn_Endpoint::handle_sender_message() and handle_type_message() that allows unauthenticated remote peers to write outside a stack buffer via an unchecked length index. Attackers can connect, complete the version-cookie exchange, and send a SENDER_DESCRIPTION or TYPE_DESCRIPTION message with an out-of-range or negative index to crash the process.

Why it matters now

EPSS 0.00446 39th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
VRPNVRPNup to 07.36—No fix listedCNA
  • VRPN VendorVRPN Affected up to 07.36 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for VRPN.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-123200
  2. 2026-11-05 Alias added: GHSA-x3v7-qh5m-v37c
  3. 2026-11-06 Affected versions changed · Red Hat
  4. 2026-11-06 CVSS score added · Red Hat
  5. 2026-11-07 Priority changed: MEDIUM → LOW

References

Patch 2

Other 2

Sources

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