MediumFix available
libgphoto2 — security advisory
libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read vulnerability in `ptp_unpack_OI()` in `camlibs/ptp2/ptp-pack.c` (lines 530–563). The function validates `len < PTP_oi_SequenceNumber` (i.e., len < 48) but subsequently accesses offsets 48–56, up to 9 bytes beyond the validated boundary, via the Samsung Galaxy 64-bit objectsize detection heuristic. Commit 7c7f515bc88c3d0c4098ac965d313518e0ccbe33 fixes the issue.
- Products
- libgphoto2
- Affected versions
- 2.5.30-1, 2.5.31-1, 2.5.31-2, 2.5.31-2.1, 2.5.31-2.1~exp1, 2.5.31-3, 2.5.31-4, 2.5.32-1, 2.5.33-1, 2.5.34-1, 2.5.34-2
- Fixed versions
- 2.5.34-1
- CVEs
- CVE-2026-40340
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:49 UTC · Revision 1
Source evidence
libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read vulnerability in `ptp_unpack_OI()` in `camlibs/ptp2/ptp-pack.c` (lines 530–563). The function validates `len < PTP_oi_SequenceNumber` (i.e., len < 48) but subsequently accesses offsets 48–56, up to 9 bytes beyond the validated boundary, via the Samsung Galaxy 64-bit objectsize detection heuristic. Commit 7c7f515bc88c3d0c4098ac965d313518e0ccbe33 fixes the issue.
osv:DEBIAN-CVE-2026-40340
libgphoto2
Fixed versions: Not specified
libgphoto2
Fixed versions: Not specified
libgphoto2
Fixed versions: 2.5.34-1
Complete source record
{
"id": "933d0de822feba23acc940be2fb7b9a24862e7c7b483ef435957249dd1593dce",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-40340",
"method": "structured",
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"title": "DEBIAN-CVE-2026-40340",
"summary": "libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read vulnerability in `ptp_unpack_OI()` in `camlibs/ptp2/ptp-pack.c` (lines 530–563). The function validates `len < PTP_oi_SequenceNumber` (i.e., len < 48) but subsequently accesses offsets 48–56, up to 9 bytes beyond the validated boundary, via the Samsung Galaxy 64-bit objectsize detection heuristic. Commit 7c7f515bc88c3d0c4098ac965d313518e0ccbe33 fixes the issue.",
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"modified": "2026-10-27T09:47:42.444990512Z",
"provider": "osv",
"upstream": [
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"references": [
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"security_relevant": true,
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},
"source_id": "core-osv",
"document_id": 461286,
"published_at": "2026-04-18T00:16:38.087+00:00"
}