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CVE-2026-40341— libgphoto2 has an OOB Read in ptp_unpack_EOS_FocusInfoEx

Quick assessment

Affected
gphoto libgphoto2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libgphoto2是gPhoto开源的一个数码相机访问与控制库。 libgphoto2 2.5.33及之前版本存在安全漏洞，该漏洞源于ptp_unpack_EOS_FocusInfoEx函数存在越界读取，可能导致处理不受信任USB设备输入时崩溃。

CVSS 3.5 · Low EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-40341

Vulnerability Information
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Vulnerability Title
libgphoto2 has an OOB Read in ptp_unpack_EOS_FocusInfoEx
Source: CVE Program / CVE List V5
Vulnerability Description
libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, an out of bound read in ptp_unpack_EOS_FocusInfoEx could be used to crash libgphoto2 when processing input from untrusted USB devices. Commit c385b34af260595dfbb5f9329526be5158985987 contains a patch. No known workarounds are available.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
缓冲区上溢读取
Source: CVE Program / CVE List V5
Vulnerability Title
libgphoto2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libgphoto2是gPhoto开源的一个数码相机访问与控制库。 libgphoto2 2.5.33及之前版本存在安全漏洞，该漏洞源于ptp_unpack_EOS_FocusInfoEx函数存在越界读取，可能导致处理不受信任USB设备输入时崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
gphoto libgphoto2 <= 2.5.33 -

II. Public POCs for CVE-2026-40341

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III. Intelligence Information for CVE-2026-40341

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Patches & Fixes for CVE-2026-40341 (1)

Same Patch Batch · gphoto · 2026-04-17 · 8 CVEs total

CVE-2026-40340 6.1 MEDIUM libgphoto2 has OOB read in ptp_unpack_OI() in ptp-pack.c via malicious PTP ObjectInfo resp
CVE-2026-40333 6.1 MEDIUM libgphoto2 has OOB read in ptp_unpack_EOS_ImageFormat() and ptp_unpack_EOS_CustomFuncEx()
CVE-2026-40339 5.2 MEDIUM libgphoto2 has OOB read in ptp_unpack_Sony_DPD() FormFlag parsing in ptp-pack.c
CVE-2026-40338 5.2 MEDIUM libgphoto2 has OOB read in ptp_unpack_Sony_DPD() enumeration count parsing in ptp-pack.c
CVE-2026-40335 5.2 MEDIUM libgphoto2 has OOB read in ptp_unpack_DPV() UINT128/INT128 handling in ptp-pack.c
CVE-2026-40334 3.5 LOW libgphoto2 missing null termination in ptp_unpack_Canon_FE() filename buffer in ptp-pack.c
CVE-2026-40336 2.4 LOW libgphoto2 has memory leak in ptp_unpack_Sony_DPD() secondary enumeration list in ptp-pack

IV. Related Vulnerabilities

Same product: libgphoto2
Same vendor: gphoto
Same weakness: CWE-126

V. Comments for CVE-2026-40341

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