CVE-2026-40334: Improper Null Termination

libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, a missing null terminator exists in ptpunpackCanonFE in camlibs/ptp2/ptp-pack.c line 1377. The function copies a filename into a 13-byte buffer using strncpy without explicitly null-terminating the result. ...

CVE-2026-40333: Out-of-bounds Read

libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, two functions in camlibs/ptp2/ptp-pack.c accept a data pointer but no length parameter, performing unbounded reads. Their callers in ptpunpackEOSevents have xsize available but never pass it, leaving both...

CVE-2026-40335: Out-of-bounds Read

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in ptpunpackDPV in camlibs/ptp2/ptp-pack.c lines 622–629. The UINT128 and INT128 cases advance offset += 16 without verifying that 16 bytes remain in the buffer. The entry check at li...

CVE-2026-40338: Out-of-bounds Read

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds read in the PTPDPFFEnumeration case of ptpunpackSonyDPD in camlibs/ptp2/ptp-pack.c line 856. The function reads a 2-byte enumeration count N via dtoh16odata, poffset without verifying that...

CVE-2026-40336: Missing Release of Memory after Effective Lifetime

libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have a memory leak in ptpunpackSonyDPD in camlibs/ptp2/ptp-pack.c lines 884–885. When processing a secondary enumeration list introduced in 2024+ Sony cameras, the function overwrites dpd-FORM.Enum.SupportedVal...