CVE-2020-4788
MEDIUMCVSS 4.7/10EPSS 0.39%
Last modified
CVE-2020-4788 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.
Description
IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Ibm | Vios | 3.1.0 |
| Ibm | Vios | 3.1.1 |
| Ibm | Vios | 3.1.2 |
| Ibm | Aix | 7.1.0 |
| Ibm | Aix | 7.1.5 |
| Ibm | Aix | 7.2.0 |
| Ibm | Aix | 7.2.3 |
| Ibm | Aix | 7.2.4 |
| Ibm | Aix | 7.2.5 |
| Fedoraproject | Fedora | 32 |
| Fedoraproject | Fedora | 33 |
| Oracle | Communications Cloud Native Core Binding Support Function | 22.1.3 |
| Oracle | Communications Cloud Native Core Network Exposure Function | 22.1.1 |
| Oracle | Communications Cloud Native Core Policy | 22.2.0 |
References
- http://www.openwall.com/lists/oss-security/2020/11/20/3Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/23/1Mailing List, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/189296VDB Entry, Vendor Advisory
- https://www.ibm.com/support/pages/node/6370729Patch, Vendor Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/20/3Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/23/1Mailing List, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/189296VDB Entry, Vendor Advisory
- https://www.ibm.com/support/pages/node/6370729Patch, Vendor Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-4788?
IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296.
How severe is CVE-2020-4788?
CVE-2020-4788 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.
How do I fix CVE-2020-4788?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-4788?
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