CVE-2026-87684CWE-121

CVE-2026-87684

Critical · published October 8, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
46.8
In the wild
Unconfirmed
What it is

A stack-based buffer overflow vulnerability exists in the SNMP daemon request handling of Brocade Fabric versions before 10.0.1. When processing an incoming SNMPv3 packet, an internal statistics gathering handler copies user-supplied context name data into a fixed-size buffer without properly validating the length of the string. A remote, unauthenticated attacker (under default configuration) can exploit this vulnerability by sending a specially crafted SNMPv3 packet, leading to memory corruption, daemon crash (Denial of Service), or potential arbitrary code execution.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00577 · 46.8th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-10-08T07:16Z
Affected products (1)
ProductVersionsFixed in
broadcom/fabric_operating_system< 10.0.110.0.1
References (1)
https://support.broadcom.com/external/content/SecurityAdvisories/0/39078 · [email protected]
EPSS history
Timeline
  • 09 OCT 03:32Z
    EPSS moved — → 0%
    epss
  • 08 OCT 02:18Z
    A stack-based buffer overflow vulnerability exists in the SNMP daemon request handling of Brocade Fabric versions before 10.0.1
    cvelistv5
  • 08 OCT 02:18Z
    A stack-based buffer overflow vulnerability exists in the SNMP daemon request handling of Brocade Fabric versions before 10.0.1
    cvelistv5