CVE-2026-10858CWE-122

CVE-2026-10858

Critical · published September 18, 2026

CVSS v3.1
9.9
EPSS
0%
Percentile
30.1
In the wild
Unconfirmed
What it is

IBM MQ for HPE NonStop 8.1.0 through 8.1.0.40 could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer underflow when processing multi-segment messages.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00373 · 30.1th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-09-18T20:17Z
References (1)
https://www.ibm.com/support/pages/node/7287704 · [email protected]
EPSS history
Timeline
  • 20 SEP 03:21Z
    EPSS moved — → 0%
    epss
  • 18 SEP 16:08Z
    IBM MQ for HPE NonStop is vulnerable to a denial of service attack
    cvelistv5