Service interruption via hardcoded CAN payload length
Published Aug 24, 2026 · Updated Aug 24, 2026
Out-of-bounds access in SpaceDot AcubeSAT OBC software commit eaf90ec allows attackers to interrupt service with a crafted CAN message. MessageParser::parseECSSTC passes a hardcoded 64-byte length to parseECSSTCHeader, which copies 59 bytes without checking the actual CAN payload length. Access to the OBC CAN bus is required; a short type-33 telecommand processes residual buffer data and destabilizes command handling.
Summary
What happened
Out-of-bounds access in SpaceDot AcubeSAT OBC software commit eaf90ec allows attackers to interrupt service with a crafted CAN message. MessageParser::parseECSSTC passes a hardcoded 64-byte length to parseECSSTCHeader, which copies 59 bytes without checking the actual CAN payload length. Access to the OBC CAN bus is required; a short type-33 telecommand processes residual buffer data and destabilizes command handling.
The record
- CVE
- CVE-2026-75370
- Published
- Aug 24, 2026
- Updated
- Aug 24, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, CWE-125, CWE-758, T1499
- Attack vector
- adjacent
- Privileges
- Unavailable
Timeline
How it unfolded
- Aug 24, 2026CVE publishedPublication date reported by the CVE source.
- Aug 24, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Short type-33 CAN telecommand reproduction procedureproof of concept · unverified
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Technologies
Your stack
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Your stack
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