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Back to active CVEs
High · CVSS 6.5CVE-2026-84698

PX4 Autopilot sd_bench Heap Buffer Overflow via Block SizeCVE-2026-84698

Answer in brief

CVE-2026-84698 records a High severity (CVSS 6.5) vulnerability in PX4 Autopilot sd_bench Heap Buffer Overflow via Block Size. The current sources do not mark it as known exploited. The current feed maps PX4/PX4-Autopilot (generic), PX4/PX4-Autopilot (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 Sep 2, 2026Updated Sep 10, 2026Source checked Oct 17, 2026First seen by HOL Sep 2, 2026Material review Sep 10, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 6.5
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.5. 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 PX4/PX4-Autopilot (generic), PX4/PX4-Autopilot (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
PX4/PX4-Autopilotgeneric0Not reported
PX4/PX4-Autopilotgeneric>=0 <=1.17.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for PX4/PX4-Autopilot, PX4/PX4-Autopilot.
  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

    Sep 2, 2026

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

  2. Source modified

    Sep 10, 2026

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

  3. First seen by HOL

    Sep 2, 2026

Sources and claim methodology

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

PX4 Autopilot contains a heap buffer overflow vulnerability in the sd_bench command that writes a four-byte block number into a user-supplied sized allocation. Attackers can invoke sd_bench with a block size below four bytes to overflow the heap buffer and potentially execute code or crash the system.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Parted: parted: heap-based buffer overflow via crafted fat32 filesystem imageAlso CWE-787
  • Parted: parted: denial of service via heap buffer overflow during fat16 resizeAlso CWE-787
  • JavaCV: Integer Overflow in IPCameraFrameGrabber Causes Infinite-Loop DoSSame generic ecosystem
  • EU VAT Assistant for WooCommerce <= 2.1.30.260413 - Unauthenticated Stored Cross-Site Scripting via 'vat_number' ParameterSame generic ecosystem
  • Kirki <= 6.3.2 - Authenticated (Administrator+) PHP Object Injection via Deserialization of Untrusted Input via ZIP Template ImportSame generic ecosystem
  • LearnPress <= 4.4.10 - Unauthenticated PHP Object Injection via 'checkout-email' ParameterSame generic ecosystem

Record context

Vulnerability class
Memory Corruption
EPSS
Not reported
CWE IDs
CWE-787
Source
CVE List V5
Source checked
Oct 17, 2026
References
4 linked sources
Open source record