Attacker Value
Unknown
0
CVE-2021-26404
0
CVE ID
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CVE-2021-26404
(Last updated November 08, 2023) ▾
MITRE ATT&CK
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Collection
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Command and Control
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Credential Access
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Defense Evasion
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Discovery
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Execution
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Exfiltration
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Impact
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Initial Access
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Lateral Movement
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Persistence
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Privilege Escalation
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Description
Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
5.5 Medium
Impact Score:
3.6
Exploitability Score:
1.8
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None
General Information
Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
3rd Gen EPYC various
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown
Vendors
Products
- epyc 7003 firmware,
- epyc 7313 firmware,
- epyc 7313p firmware,
- epyc 7343 firmware,
- epyc 7373x firmware,
- epyc 73f3 firmware,
- epyc 7413 firmware,
- epyc 7443 firmware,
- epyc 7443p firmware,
- epyc 7453 firmware,
- epyc 7473x firmware,
- epyc 74f3 firmware,
- epyc 7513 firmware,
- epyc 7543 firmware,
- epyc 7543p firmware,
- epyc 7573x firmware,
- epyc 75f3 firmware,
- epyc 7643 firmware,
- epyc 7663 firmware,
- epyc 7713 firmware,
- epyc 7713p firmware,
- epyc 7763 firmware,
- epyc 7773x firmware
References
Additional Info
Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Rapid7
Technical Analysis
Report as Emergent Threat Response
Report as Zero-day Exploit
Report as Exploited in the Wild
CVE ID
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