Vulnerability · Published Sep 24, 2026 · Assigned by ibm
CVE-2026-18870This Power System update is being released to address
Medium 4.3
In plain English
A medium-severity out-of-bounds read in PowerVM Hypervisor from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.2%top 91.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
IBM PowerVM Hypervisor FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and FW950.00 through FW950.H3 could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | PowerVM Hypervisor | FW1120.00 – through FW1120.01FW1110.00 – through FW1110.31FW1060.00 – through FW1060.81FW950.00 – through FW950.H3 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- https://www.ibm.com/support/pages/node/7289135 vendor-advisory, patch