CVE-2026-37532

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Summary

CVECVE-2026-37532
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 17:16:22 UTC
Updated2026-05-01 20:16:22 UTC
DescriptionAGL agl-service-can-low-level thru 17.1.12 contains a heap buffer over-read in the isotp-c library. In isotp_continue_receive (receive.c:87-89), the payload_length for a Single Frame is extracted from a 4-bit nibble in the CAN frame data, yielding values 0-15. However, a standard CAN frame is only 8 bytes, with payload starting at data[1] (7 bytes available). When payload_length exceeds the available data (e.g., nibble=15 but only 7 payload bytes exist), memcpy(message.payload, &data[1], payload_length) reads up to 8 bytes past the end of the data buffer.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Problem Types: CWE-126 | n/a | CWE-126 CWE-126 Buffer Over-read

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.1HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
3.1CNADECLARED7.1HIGHCVSS:3.1/AC:L/AV:A/A:H/C:L/I:N/PR:N/S:U/UI:N

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
gist.github.com/sgInnora/8526eedcfd826d05ef1fc45d8f405643 [email protected] gist.github.com
gerrit.automotivelinux.org/gerrit/apps/agl-service-can-low-level [email protected] gerrit.automotivelinux.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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