# CVE-2026-120451: libgphoto2 through 2.5.34 Buffer Overflow via jl2005c Camera Driver

Status: published. Published: 2026-11-02. Updated: 2026-11-02.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- gPhoto / libgphoto2: ≥ 0; ≤ 2.5.34 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 7 (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; source: CNA: VulnCheck

- CVSS 3.1: 6.8 (medium); CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-787

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/gphoto/libgphoto2/issues/1326 (CNA: VulnCheck; issue-tracking)

- https://github.com/gphoto/libgphoto2/commit/af3b8e9c542cda863fb5f2f3cfeb261bd78e4442 (CNA: VulnCheck; patch)

- https://github.com/gphoto/libgphoto2/commit/6a3393dd996502457ab965432cf0b2035278825e (CNA: VulnCheck; patch)

- https://github.com/gphoto/libgphoto2/blob/v2.5.34/camlibs/jl2005c/jl2005c.c#L138-L154 (CNA: VulnCheck; technical-description)

- https://hackmd.io/@haindpwn/libgphoto2-jl2005c-init-alloc-table-buffer-overflow (CNA: VulnCheck; technical-description)

- https://www.vulncheck.com/advisories/libgphoto2-through-2.5.34-buffer-overflow-via-jl2005c-camera-driver (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-120451; retrieved 2026-11-02; source updated 2026-11-02

Revision: 25ebe00472f82db1043935e0a1c734e730bcba95a143e87abd18ef258e63bb81

Canonical: https://y2.dev/cve/CVE-2026-120451

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