CVE-2026-40336
It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing EOS image format data. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40333) It was discovered that libgphoto2 did not properly null-terminate buffers when parsing Canon folder entries. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40334) It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing device property values. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40335) It was discovered that libgphoto2 had a memory leak when parsing Sony device property descriptors. An attacker with physical access could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-40336) It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing Sony device property enumeration data. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40338) It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing Sony device property form flags. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40339) It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing object information. An attacker with physical access could possibly use this issue to obtain sensitive information. (CVE-2026-40340) It was discovered that libgphoto2 did not properly validate buffer boundaries when parsing EOS focus information. An attacker with physical access could possibly use this issue to cause libgphoto2 to crash, resulting in a denial of service. (CVE-2026-40341)
CSIRTS triage
- What
- libgphoto2 has multiple vulnerabilities that could allow an attacker with physical access to obtain sensitive information or cause a denial of service.
- Who is affected
- Users with physical access to devices using libgphoto2.
- Urgency
- Remediation is urgent due to the potential for information disclosure and denial of service.
- Action
- Update to the latest version of libgphoto2.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.
Advisory coverage (1)
- unknownUSN-8586-1: libgphoto2 vulnerabilitiesubuntu · 2026-07-22
External references
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