CVE-2026-15105

תיאור (מקור, אנגלית)

A flaw has been found in davenardella snap7 up to 1.4.3. This affects the function TS7Worker::PerformFunctionRead of the file src/core/s7_server.cpp of the component ReadVar Request Handler. This manipulation causes out-of-bounds write. The attack requires access to the local network. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

מדדים

CVSS 3.1

6.3 (MEDIUM) מקור הציון: CNA CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS 4.0

2.1 (LOW) מקור הציון: CNA CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-17/8/2026

CWE

CWE-119, CWE-787

קישורים

• https://github.com/davenardella/snap7/
• https://github.com/davenardella/snap7/issues/16
• https://github.com/user-attachments/files/28681740/poc.zip
• https://vuldb.com/cve/CVE-2026-15105
• https://vuldb.com/submit/851026
• https://vuldb.com/vuln/376946
• https://vuldb.com/vuln/376946/cti