libgphoto2 has an OOB Read in ptp_unpack_EOS_FocusInfoEx

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Summary

CVECVE-2026-40341
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-18 00:16:38 UTC
Updated2026-04-18 00:16:38 UTC
Descriptionlibgphoto2 is a camera access and control library. In versions up to and including 2.5.33, an out of bound read in ptp_unpack_EOS_FocusInfoEx could be used to crash libgphoto2 when processing input from untrusted USB devices. Commit c385b34af260595dfbb5f9329526be5158985987 contains a patch. No known workarounds are available.

Risk And Classification

Primary CVSS: v3.1 3.5 LOW from [email protected]

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

Problem Types: CWE-126 | CWE-126 CWE-126: Buffer Over-read

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary3.5LOWCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
3.1CNADECLARED3.5LOWCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Gphoto Libgphoto2 affected <= 2.5.33 Not specified

References

ReferenceSourceLinkTags
github.com/gphoto/libgphoto2/commit/c385b34af260595dfbb5f9329526be515898... [email protected] github.com
github.com/gphoto/libgphoto2/security/advisories/GHSA-vjx3-gjp6-r2g2 [email protected] github.com
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