CVE-2026-18871

highpriority · track · 0EPSS 0.001 · 3 %ileUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.14% (3rd) EPSS
CVSS 7.3 · high
Is it mine?
27 products
Check your exposure
Who says so?
1 sources
nvd

EPSS · scored 2026-10-27

IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, and FW1060.00 through FW1060.80 is affected by a vulnerability in host firmware configuration parsing. An attacker with authenticated service-level access to the service processor can write specially crafted configuration data, causing the host firmware boot stack to crash with possible memory corruption during system initialisation, resulting in an integrity and availability impact to the managed system.

01

cvss

Technical severity, 0–10. One row per scoring source.

7.3
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.7–7.3

v3.17.3highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:Hsecondary · psirt@us.ibm.com USexploitability 2 · impact 4.7
v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-121US
04

affected products (27)

Products and version ranges known to be affected.

showing 20 of 27
05

sources

Which sources assert this record, and when.

nvdNVDCVE.orgMITRE
published 2026-08-19modified 2026-08-25
06

references (1) nvd

External citations — patches, advisories, analysis.

scry

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