Description
libgphoto2 through 2.5.34 contains a heap out-of-bounds read and write vulnerability in jl2005bcd_decompress() that allows malicious USB cameras to corrupt heap memory via oversized thumbnail processing. Attackers can supply small allocation-table values and a thumbnail header byte so in-place byte-swapping exceeds the buffer by about 30 KB, leaking heap contents in preview images.
Published: 2026-11-02
Score: 5.2 Medium
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 02 Nov 2026 14:30:00 +0000

Type Values Removed Values Added
Description libgphoto2 through 2.5.34 contains a heap out-of-bounds read and write vulnerability in jl2005bcd_decompress() that allows malicious USB cameras to corrupt heap memory via oversized thumbnail processing. Attackers can supply small allocation-table values and a thumbnail header byte so in-place byte-swapping exceeds the buffer by about 30 KB, leaking heap contents in preview images.
Title libgphoto2 through 2.5.34 Heap Out-of-Bounds Read/Write via jl2005c Thumbnail Conversion
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H'}

cvssV4_0

{'score': 5.2, 'vector': 'CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-02T14:29:10.220Z

Reserved: 2026-11-02T12:42:20.666Z

Link: CVE-2026-120452

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-02T15:17:28.553

Modified: 2026-11-02T15:17:28.553

Link: CVE-2026-120452

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses