CVE-2026-55005 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	8.8 HIGH	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 62.15%

Affected Products (NVD)

Vendor	Product	Version
microsoft	exchange_server	𝑥 < 15.02.2562.045
microsoft	exchange_server	15.1.0.0 ≤ 𝑥 < 15.1.2507.71
microsoft	exchange_server	15.2.0.0 ≤ 𝑥 < 15.2.1748.48
microsoft	exchange_server	15.2.0.0 ≤ 𝑥 < 15.2.1544.43

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-122 - Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55005