CVE-2026-3630 Stack-based Buffer Overflow Vulnerability in COMMGR2
A stack-based buffer overflow in Delta Electronics COMMGR2 allows attackers to execute arbitrary code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-3630?
CVE-2026-3630 is a critical memory corruption vulnerability in DeltaWW COMMGR2, published on 9 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Delta Electronics COMMGR2 has
Stack-based Buffer Overflow vulnerability.
Weakness: CWE-787
Which versions are affected by CVE-2026-3630?
It affects 1 product.
Products include Deltaww Commgr2.
How do I fix CVE-2026-3630?
No fix has been published for CVE-2026-3630 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-3630 being exploited?
There is no known exploitation of CVE-2026-3630 in the wild and no public exploit code.
Other vulnerabilities in DeltaWW COMMGR2
Sources
Also known as GHSA-642c-46j5-rhcm.