Vulnerability Description
TIER IV Nebula through 1.2.0 contains an out-of-bounds read vulnerability in the Vlp32Decoder::unpack() function that allows unauthenticated remote attackers to cause the decoder to read past the end of a received UDP buffer into adjacent heap memory by sending a short UDP datagram. Attackers can send a malformed datagram to the Velodyne UDP sensor port, which lacks sender-address restrictions present in other drivers, causing fabricated points derived from heap memory contents to be silently published into downstream PointCloud2 messages consumed by Autoware nodes.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/tier4/nebula/issues/488
- https://www.vulncheck.com/advisories/tier-iv-nebula-heap-out-of-bounds-read-via-
FAQ
What is CVE-2026-74238?
CVE-2026-74238 is a vulnerability with a CVSS score of 7.5 (HIGH). TIER IV Nebula through 1.2.0 contains an out-of-bounds read vulnerability in the Vlp32Decoder::unpack() function that allows unauthenticated remote attackers to cause the decoder to read past the end ...
How severe is CVE-2026-74238?
CVE-2026-74238 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-74238?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.