CVE-2026-120451
libgphoto2 through 2.5.34 Buffer Overflow via jl2005c Camera Driver
libgphoto2 through 2.5.34 contains stack-based and heap-based buffer overflow vulnerabilities in jl2005c_init() that allow malicious USB devices to corrupt memory by supplying an unbounded allocation table entry count. Attackers can connect a spoofed Jeilin JL2005B/C/D camera reporting 1022 or more entries to overwrite the saved return address and heap data, potentially achieving code execution.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| libgphoto2 gPhoto |
≥ 0; ≤ 2.5.34 (affected, semver)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 7.0 high |
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 6.8 medium |
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CNA: VulnCheck |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/gphoto/libgphoto2/issues/1326CNA: VulnCheck · issue-tracking
- https://github.com/gphoto/libgphoto2/commit/af3b8e9c542cda863fb5f2f3cfeb261bd78e4442CNA: VulnCheck · patch
- https://github.com/gphoto/libgphoto2/commit/6a3393dd996502457ab965432cf0b2035278825eCNA: VulnCheck · patch
- https://github.com/gphoto/libgphoto2/blob/v2.5.34/camlibs/jl2005c/jl2005c.c#L138-L154CNA: VulnCheck · technical-description
- https://hackmd.io/@haindpwn/libgphoto2-jl2005c-init-alloc-table-buffer-overflowCNA: VulnCheck · technical-description
- https://www.vulncheck.com/advisories/libgphoto2-through-2.5.34-buffer-overflow-via-jl2005c-camera-driverCNA: VulnCheck · third-party-advisory
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