Vulnerability · Published May 26, 2021 · Assigned by ibm
CVE-2021-20487
High 8.0
In plain English
A high-severity security flaw in Power 9 Systems from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).
Severity (CVSS 3.0)8.0High
Exploit odds (30 days)0.7%top 47.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
IBM Power9 Self Boot Engine(SBE) could allow a privileged user to inject malicious code and compromise the integrity of the host firmware bypassing the host firmware signature verification process.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | Power 9 Systems | FW930FW940FW941OP940 |
References
- https://www.ibm.com/support/pages/node/6455911 x_refsource_CONFIRM
- ibm-power9-cve202120487-priv-escalation (197730) vdb-entry, x_refsource_XF