Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
CVE-2020-24511
This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 67% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 6.5
- EG Score
- 6.5(medium)
- EG Risk
- —
- EPSS
- 32.8%
- KEV
- Not listed
Published
June 9, 2021
Last Modified
November 21, 2024
References (10)
- secure@intelhttps://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdf
- secure@intelhttps://lists.debian.org/debian-lts-announce/2021/07/msg00022.html
- secure@intelhttps://security.netapp.com/advisory/ntap-20210611-0005/
- secure@intelhttps://www.debian.org/security/2021/dsa-4934
- secure@intelhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00464.html
- af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdf
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/07/msg00022.html
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210611-0005/
- af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4934
- af854a3a-2127-422b-91ae-364da2661108https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00464.html
Vendor Advisories for CVE-2020-24511(9)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2021:3364Red Hat Product SecurityHigh
Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update
- RHSA-2021:3317Red Hat Product SecurityHigh
Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update
- RHSA-2021:3322Red Hat Product SecurityHigh
Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update
- RHSA-2021:3323Red Hat Product SecurityHigh
Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update
- RHSA-2021:3255Red Hat Product SecurityHigh
Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update
- RHSA-2021:3176Red Hat Product SecurityHigh
Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update
- RHSA-2021:3029Red Hat Product SecurityHigh
Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update
- RHSA-2021:3028Red Hat Product SecurityHigh
Red Hat Security Advisory: microcode_ctl security, bug fix and enhancement update
- +1 more
Patch Availability(20)
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(11)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Red HatRHSA-2021:2299MODERATE2021-06-08
RHSA-2021:2299 — Moderate
- Red HatRHSA-2021:2300MODERATE2021-06-08
RHSA-2021:2300 — Moderate
- Red HatRHSA-2021:2301MODERATE2021-06-08
RHSA-2021:2301 — Moderate
- Red HatRHSA-2021:2302MODERATE2021-06-08
RHSA-2021:2302 — Moderate
- Red HatRHSA-2021:2303MODERATE2021-06-08
RHSA-2021:2303 — Moderate
- Red HatRHSA-2021:2304MODERATE2021-06-08
RHSA-2021:2304 — Moderate
- Red HatRHSA-2021:2305MODERATE2021-06-08
RHSA-2021:2305 — Moderate
- Red HatRHSA-2021:2306MODERATE2021-06-08
RHSA-2021:2306 — Moderate
- Red HatRHSA-2021:2307MODERATE2021-06-08
RHSA-2021:2307 — Moderate
- Red HatRHSA-2021:2308MODERATE2021-06-08
RHSA-2021:2308 — Moderate
- UbuntuUSN-4985-1MEDIUM
Intel Microcode vulnerabilities
Data Freshness Timeline
(refreshed 12× in last 7d / 46× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 22:37 UTCEG score recompute
- 2026-07-22 14:05 UTCEPSS rescore
- 2026-07-21 15:22 UTCEPSS rescore
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- 2026-07-20 17:04 UTCEPSS rescore
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- 2026-07-19 14:28 UTCEPSS rescore
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- 2026-07-18 18:59 UTCOSV refresh
- 2026-07-18 10:02 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
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- 2026-07-06 16:25 UTCEPSS rescore
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- 2026-07-01 01:48 UTCOSV refresh
- 2026-06-30 23:20 UTCEPSS rescore
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- 2026-06-13 04:13 UTCOSV refresh
- 2026-06-12 23:10 UTCEPSS rescore
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- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-26 15:10 UTCEG score recompute
- 2026-05-26 15:10 UTCVendor advisory
- 2026-05-26 15:10 UTCGHSA enrichment
- 2026-05-26 13:42 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat
Same CWE
10 shownCWE-668
- CVE-2019-16541EG 9.9CRITICAL
- CVE-2019-20853EG 9.8CRITICAL
- CVE-2019-10781EG 9.8CRITICAL
- CVE-2019-19015EG 9.8CRITICAL
- CVE-2008-7291EG 9.8CRITICAL
- CVE-2019-12929EG 9.8EPSS 91%CRITICAL
- CVE-2019-12928EG 9.8EPSS 98%CRITICAL
- CVE-2018-7846EG 9.8EPSS 98%CRITICAL
- CVE-2018-18068EG 9.8CRITICAL
- CVE-2018-7072EG 9.8CRITICAL
Frequently asked(5)
What is CVE-2020-24511?
When was CVE-2020-24511 disclosed?
Is CVE-2020-24511 actively exploited?
What is the CVSS score of CVE-2020-24511?
How do I remediate CVE-2020-24511?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2020-24511
Is Your Infrastructure Affected by CVE-2020-24511?
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