Synopsis
Multiple vulnerabilities exist in Delta Electronics COMMGR version 2.11.0.
Stack-based Buffer Overflow Via Message 3 (CVE-2026-3630)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (9.8 Critical)
A specially crafted message can cause a stack-based buffer overflow.
Buffer Over-read DoS Via Message 517 (CVE-2026-3631)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (7.5 High)
A specially crafted message can cause a buffer over-read.
Solution
Upgrade to COMMGR version 2.11.1 or later.
Additional References
https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2026-00005_COMMGR%202%20Multiple%20Vulnerabilities%20(CVE-2026-3630,%20CVE-2026-3631).pdfDisclosure Timeline
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