CVE-2021-20487
6.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
8.9 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
40.0%
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 configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| ibm | power_9_ac922 | FW930 | cpe:2.3:h:ibm:power_9_ac922:FW930:*:*:*:*:*:*:* |
| ibm | power_9_ac922 | FW940 | cpe:2.3:h:ibm:power_9_ac922:FW940:*:*:*:*:*:*:* |
| ibm | power_9_ac922 | FW941 | cpe:2.3:h:ibm:power_9_ac922:FW941:*:*:*:*:*:*:* |
| ibm | power_9_ac922 | 940 | cpe:2.3:h:ibm:power_9_ac922:940:*:*:*:*:*:*:* |
CNA Affected
[
{
"product": "Power 9 Systems",
"vendor": "IBM",
"versions": [
{
"status": "affected",
"version": "FW930"
},
{
"status": "affected",
"version": "FW940"
},
{
"status": "affected",
"version": "FW941"
},
{
"status": "affected",
"version": "OP940"
}
]
}
]Social References
More
Related
6.5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
8.9 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
40.0%