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  4. CVE 2026 74238 tier iv nebula 120 heap out of bounds read via
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Back to active CVEs
High · CVSS 7.5CVE-2026-74238

TIER IV Nebula 1.2.0 Heap Out-of-Bounds Read via VLP32 UDP Decoder

Answer in brief

CVE-2026-74238 records a High severity (CVSS 7.5) vulnerability in TIER IV Nebula 1.2.0 Heap Out-of-Bounds Read via VLP32 UDP Decoder. The current sources do not mark it as known exploited. The current feed maps tier4/nebula (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 17, 2026Updated Sep 24, 2026Source checked Oct 2, 2026First seen by HOL Aug 17, 2026Material review Sep 24, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps tier4/nebula (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
tier4/nebulageneric0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for tier4/nebula.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Aug 17, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 24, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 17, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Kubio AI Page Builder <= 2.9.2 - Unauthenticated Stored Cross-Site Scripting via SVG Comment Content (KSES Allowlist Bypass)Same generic ecosystem
  • Download Monitor <= 5.2.10 - Unauthenticated Stored Cross-Site Scripting via Cross-Origin postMessage to Admin EditorSame generic ecosystem
  • Otter Blocks <= 3.2.6 - Authenticated (Subscriber+) Sensitive Information Exposure in Form Submissions Dashboard WidgetSame generic ecosystem
  • CMB2 <= 2.13.1 - Unauthenticated Stored Cross-Site Scripting via 'textarea_code' FieldSame generic ecosystem
  • Relevanssi Premium <= 2.31.4 - Unauthenticated Stored Cross-Site Scripting via '_rt' ParameterSame generic ecosystem
  • Unbounded ASN.1 nesting depth causes process-terminating stack overflowSame generic ecosystem

Record context

Vulnerability class
Buffer Overflow
EPSS
Not reported
CWE IDs
CWE-125
Source
CVE List V5
Source checked
Oct 2, 2026
References
2 linked sources
Open source record