Is CVE-2020-24455 in the CISA KEV catalog?

No. CVE-2020-24455 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-24455?

CVE-2020-24455 has a CVSS v3 base score of 6.7 (MEDIUM).

What is the EPSS score for CVE-2020-24455?

CVE-2020-24455 has an EPSS score of 0.59% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-24455?

Upgrade tpm2-tss on debian 11 to 3.0.1-1 or later.

CVE & CISA-KEV Catalog

CVE-2020-24455

MEDIUM

6.7

CVSS v3

NVD

Description

Missing initialization of a variable in the TPM2 source may allow a privileged user to potentially enable an escalation of privilege via local access. This affects tpm2-tss before 3.0.1 and before 2.4.3.

CWE-909

How to fix

Remediation Available

tpm2-tssDebian

Fixed in:3.0.1-1CVE-2020-24455

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.59%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Third-Party Advisory3

Other references1

lists.fedoraproject.org

Related Vulnerabilities

Other CWE-909 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2018-14647	High	7.5	11%	-	Fix
CVE-2019-9639	High	7.5	8.2%	-	Fix
CVE-2018-10811	High	7.5	7.1%	-	Fix
CVE-2020-12352	Medium	6.5	5.7%	-	Fix
CVE-2019-3804	High	7.5	4.9%	-	Fix
CVE-2020-16932	High	7.8	4.8%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.