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TI-2018-02810 Aliases CVE-2018-3840GHSA-f4qg-fj27-xc48

Improper input validation in Talos Pixar Renderman

Priority LOW 36CWE-20Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.

Summary

A denial-of-service vulnerability exists in the Pixar Renderman IT Display Service 21.6 (0x67). The vulnerability is present in the parsing of a network packet without proper validation of the packet. The data read by the application is not validated, and its use can lead to a null pointer dereference. The IT application is opened by a user and then listens for a connection on port 4001. An attacker can deliver an attack once the application has been opened.

Why it matters now

EPSS 0.01592 75th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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
TalosPixar RendermanRenderman 21.6—No fix listedCNA
  • Pixar Renderman VendorTalos Affected Renderman 21.6 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pixar:renderman:21.6:*:*:*:*:*:*:*21.6VulnerablePixar
  • cpe:2.3:a:pixar:renderman:21.6:*:*:*:*:*:*:* Versions 21.6 Vulnerable ·Pixar

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-3840
  2. 2026-10-03 Alias added: GHSA-f4qg-fj27-xc48

References

Exploit 1

  • TI-2019-03483 A local privilege escalation vulnerability exists in the Mac OS X version of Pixar… CVSS 3.1HIGH 7.8
  • TI-2018-02811 NULL pointer dereference in Talos Pixar Renderman CVSS 3.1HIGH 7.5
  • TI-2018-03022 Improper input validation in Talos Pixar Renderman CVSS 3.1HIGH 7.8
  • TI-2018-03023 Improper input validation in Talos Pixar Renderman CVSS 3.1MEDIUM 5.5

Sources

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