Details of VAR-202608-7526

ID

VAR-202608-7526

CVE

CVE-2026-18681

TITLE

IBM of IBM Power System E1080 (9080-HEX) Stack-based buffer overflow vulnerability in multiple products, including firmware

Trust: 0.8

sources: JVNDB: JVNDB-2026-030376

DESCRIPTION

IBM Server Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the FSP firmware update process. An attacker with authenticated administrator-level access to the FSP can, under specific conditions, execute arbitrary code, resulting in a confidentiality, integrity, and availability impact. - All information handled by the software may be overwritten. - The software may completely shut down

Trust: 1.62

sources: NVD: CVE-2026-18681 // JVNDB: JVNDB-2026-030376

AFFECTED PRODUCTS

vendor:	ibm	model:	power system e980 \	scope:	gte	version:	fw950.00	Trust: 1.0
vendor:	ibm	model:	power system s924 \	scope:	lt	version:	fw950.h3	Trust: 1.0
vendor:	ibm	model:	power system h922 \	scope:	lt	version:	fw950.h3	Trust: 1.0
vendor:	ibm	model:	power system e1080 \	scope:	lt	version:	fw1060.81	Trust: 1.0
vendor:	ibm	model:	power system e950 \	scope:	lt	version:	fw950.h3	Trust: 1.0
vendor:	ibm	model:	power system h924 \	scope:	lt	version:	fw950.h3	Trust: 1.0
vendor:	ibm	model:	power system s924 \	scope:	gte	version:	fw950.00	Trust: 1.0
vendor:	ibm	model:	power system e1180 \	scope:	lt	version:	fw1110.31	Trust: 1.0
vendor:	ibm	model:	power system e950 \	scope:	gte	version:	fw950.00	Trust: 1.0
vendor:	ibm	model:	power system h924 \	scope:	gte	version:	fw950.00	Trust: 1.0
vendor:	ibm	model:	power system e1180 \	scope:	gte	version:	fw1110.00	Trust: 1.0
vendor:	ibm	model:	power system h922 \	scope:	gte	version:	fw950.00	Trust: 1.0
vendor:	ibm	model:	power system e1180 \	scope:	eq	version:	fw1120.00	Trust: 1.0
vendor:	ibm	model:	power system e1080 \	scope:	gte	version:	fw1060.00	Trust: 1.0
vendor:	ibm	model:	power system s914 \	scope:	lt	version:	fw950.h3	Trust: 1.0
vendor:	ibm	model:	power system s922 \	scope:	lt	version:	fw950.h3	Trust: 1.0
vendor:	ibm	model:	power system e980 \	scope:	lt	version:	fw950.h3	Trust: 1.0
vendor:	ibm	model:	power system s914 \	scope:	gte	version:	fw950.00	Trust: 1.0
vendor:	ibm	model:	power system s922 \	scope:	gte	version:	fw950.00	Trust: 1.0
vendor:	ibm	model:	power system e980	scope:	-	version:	-	Trust: 0.8
vendor:	ibm	model:	power system h924	scope:	-	version:	-	Trust: 0.8
vendor:	ibm	model:	power system e1180	scope:	-	version:	-	Trust: 0.8
vendor:	ibm	model:	power system s924	scope:	-	version:	-	Trust: 0.8
vendor:	ibm	model:	power system e1080	scope:	-	version:	-	Trust: 0.8
vendor:	ibm	model:	power system h922	scope:	-	version:	-	Trust: 0.8
vendor:	ibm	model:	power system s922	scope:	-	version:	-	Trust: 0.8
vendor:	ibm	model:	power system s914	scope:	-	version:	-	Trust: 0.8
vendor:	ibm	model:	power system e950	scope:	-	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2026-030376 // NVD: CVE-2026-18681

CVSS

SEVERITY

CVSSV2

CVSSV3

psirt@us.ibm.com:	CVE-2026-18681
value:	MEDIUM
Trust: 1.0
OTHER:	JVNDB-2026-030376
value:	MEDIUM
Trust: 0.8

psirt@us.ibm.com:	CVE-2026-18681
baseSeverity:	MEDIUM
baseScore:	6.8
vectorString:	CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	0.9
impactScore:	5.9
version:	3.1
Trust: 1.0
OTHER:	JVNDB-2026-030376
baseSeverity:	MEDIUM
baseScore:	6.8
vectorString:	CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
attackVector:	ADJACENT NETWORK
attackComplexity:	LOW
privilegesRequired:	HIGH
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: JVNDB: JVNDB-2026-030376 // NVD: CVE-2026-18681

PROBLEMTYPE DATA

problemtype:	CWE-121	Trust: 1.0
problemtype:	Stack-based buffer overflow (CWE-121) [ others ]	Trust: 0.8

sources: JVNDB: JVNDB-2026-030376 // NVD: CVE-2026-18681

PATCH

title:

Security Bulletin

url:

https://www.ibm.com/support/pages/node/7283899

Trust: 0.8

sources: JVNDB: JVNDB-2026-030376

EXTERNAL IDS

db:	NVD	id:	CVE-2026-18681	Trust: 2.6
db:	JVNDB	id:	JVNDB-2026-030376	Trust: 0.8

sources: JVNDB: JVNDB-2026-030376 // NVD: CVE-2026-18681

REFERENCES

url:	https://www.ibm.com/support/pages/node/7283899	Trust: 1.0
url:	https://nvd.nist.gov/vuln/detail/cve-2026-18681	Trust: 0.8

sources: JVNDB: JVNDB-2026-030376 // NVD: CVE-2026-18681

SOURCES

db:	JVNDB	id:	JVNDB-2026-030376
db:	NVD	id:	CVE-2026-18681

LAST UPDATE DATE

2026-08-27T23:52:28.117000+00:00

SOURCES UPDATE DATE

db:	JVNDB	id:	JVNDB-2026-030376	date:	2026-08-26T07:28:00
db:	NVD	id:	CVE-2026-18681	date:	2026-08-25T20:21:00.900

SOURCES RELEASE DATE

db:	JVNDB	id:	JVNDB-2026-030376	date:	2026-08-26T00:00:00
db:	NVD	id:	CVE-2026-18681	date:	2026-08-19T19:17:12.110