8.4
HIGH
CVSS 3.1
CVE-2026-11885
Power System update in Buffer Copy
Overview
Description
IBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H1 A carefully crafted OS hypervisor call can cause the PowerVM hypervisor to crash or compromise OS memory integrity.
Details
INFO
Published Date :
July 30, 2026, 5:16 p.m.
Last Modified :
Aug. 26, 2026, 2:32 p.m.
Remotely Exploit :
No
Source :
[email protected]
Impact
Affected Products
The following products are affected by CVE-2026-11885
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 9a959283-ebb5-44b6-b705-dcc2bbced522 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE |
Solution
Update IBM PowerVM hypervisor firmware to a fixed version to address memory integrity issues.
- Update IBM PowerVM hypervisor firmware.
- Apply the latest service pack or fix pack.
- Consult IBM support for specific version guidance.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-11885.
| URL | Resource |
|---|---|
| https://www.ibm.com/support/pages/node/7280628 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-11885 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-11885
weaknesses.
CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call
CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities
CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables
CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow
CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow
CAPEC-42: MIME Conversion MIME Conversion
CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File
CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links
CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags
CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion
CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog()
CAPEC-92: Forced Integer Overflow Forced Integer Overflow
CAPEC-100: Overflow Buffers Overflow Buffers
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-11885 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-11885 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 26, 2026
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s1122_(9824-22a)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1110.00 up to (excluding) fw1110.30 OR cpe:2.3:h:ibm:power_system_s1122_(9824-22a):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s1124_(9824-42a)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1110.00 up to (excluding) fw1110.30 OR cpe:2.3:h:ibm:power_system_s1124_(9824-42a):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s1122s_(9824-22b)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1110.00 up to (excluding) fw1110.30 OR cpe:2.3:h:ibm:power_system_s1122s_(9824-22b):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s1114_(9824-41b)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1110.00 up to (excluding) fw1110.30 OR cpe:2.3:h:ibm:power_system_s1114_(9824-41b):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_l1122_(9856-22h)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1110.00 up to (excluding) fw1110.30 OR cpe:2.3:h:ibm:power_system_l1122_(9856-22h):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_l1124_(9856-42h)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1110.00 up to (excluding) fw1110.30 OR cpe:2.3:h:ibm:power_system_l1124_(9856-42h):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_e1150_(9043-mru)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1110.00 up to (excluding) fw1110.30 OR cpe:2.3:h:ibm:power_system_e1150_(9043-mru):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_e1080_(9080-hex)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1060.00 up to (excluding) fw1060.72 OR cpe:2.3:h:ibm:power_system_e1080_(9080-hex):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s1022_(9105-22a)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1060.00 up to (excluding) fw1060.72 OR cpe:2.3:h:ibm:power_system_s1022_(9105-22a):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s1024_(9105-42a)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1060.00 up to (excluding) fw1060.72 OR cpe:2.3:h:ibm:power_system_s1024_(9105-42a):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s1022s_(9105-22b)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1060.00 up to (excluding) fw1060.72 OR cpe:2.3:h:ibm:power_system_s1022s_(9105-22b):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s1014_(9105-41b)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1060.00 up to (excluding) fw1060.72 OR cpe:2.3:h:ibm:power_system_s1014_(9105-41b):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_l1022_(9786-22h)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1060.00 up to (excluding) fw1060.72 OR cpe:2.3:h:ibm:power_system_l1022_(9786-22h):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_l1024_(9786-42h)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1060.00 up to (excluding) fw1060.72 OR cpe:2.3:h:ibm:power_system_l1024_(9786-42h):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_e1050_(9043-mrx)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1060.00 up to (excluding) fw1060.72 OR cpe:2.3:h:ibm:power_system_e1050_(9043-mrx):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s1012_(9028-21b)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1060.00 up to (excluding) fw1060.72 OR cpe:2.3:h:ibm:power_system_s1012_(9028-21b):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_e1180_(9080-heu)_firmware:*:*:*:*:*:*:*:* versions from (including) fw1110.00 up to (excluding) fw1110.30 OR cpe:2.3:h:ibm:power_system_e1180_(9080-heu):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_e980_(9080-m9s)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_e980_(9080-m9s):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_l922_(9008-22l)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_l922_(9008-22l):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s922_(9009-22a)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_s922_(9009-22a):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s922_(9009-22g)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_s922_(9009-22g):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_h922_(9223-22h)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_h922_(9223-22h):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_h922_(9223-22s)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_h922_(9223-22s):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s914_(9009-41a)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_s914_(9009-41a):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s914_(9009-41g)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_s914_(9009-41g):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s924_(9009-42a)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_s924_(9009-42a):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_s924_(9009-42g)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_s924_(9009-42g):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_h924_(9223-42h)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_h924_(9223-42h):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_h924_(9223-42s)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_h924_(9223-42s):-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:power_system_e950_(9040-mr9)_firmware:*:*:*:*:*:*:*:* versions from (including) fw950.00 up to (excluding) fw950.h2 OR cpe:2.3:h:ibm:power_system_e950_(9040-mr9):-:*:*:*:*:*:*:* Added Reference Type IBM Corporation: https://www.ibm.com/support/pages/node/7280628 Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 30, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-11885', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-30T17:32:31.432254Z'} -
New CVE Received by [email protected]
Jul. 30, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_hypervisor:fw1110.00.0:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_hypervisor:fw1110.20:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_hypervisor:fw1110.20.0:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_hypervisor:fw1060.00.0:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_hypervisor:fw1060.71:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_hypervisor:fw1060.71.0:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_hypervisor:fw950.00:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_hypervisor:fw950.00.0:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_hypervisor:fw950.h1:*:*:*:*:*:*:*', 'cpe:2.3:a:ibm:powervm_hypervisor:fw950.h1.0:*:*:*:*:*:*:*'], 'vendor': 'IBM', 'product': 'PowerVM Hypervisor', 'versions': [{'status': 'affected', 'version': 'FW1110.00', 'versionType': 'semver', 'lessThanOrEqual': 'FW1110.20'}, {'status': 'affected', 'version': 'FW1060.00', 'versionType': 'semver', 'lessThanOrEqual': 'FW1060.71'}, {'status': 'affected', 'version': 'FW950.00', 'versionType': 'semver', 'lessThanOrEqual': 'FW950.H1'}]}] Added Description IBM PowerVM Hypervisor FW1110.00 through FW1110.20, FW1060.00 through FW1060.71, and FW950.00 through FW950.H1 A carefully crafted OS hypervisor call can cause the PowerVM hypervisor to crash or compromise OS memory integrity. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H Added CWE CWE-120 Added Reference https://www.ibm.com/support/pages/node/7280628
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.