Is CVE-2021-20675 in the CISA KEV catalog?

No. CVE-2021-20675 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-20675?

CVE-2021-20675 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2021-20675?

CVE-2021-20675 has an EPSS score of 1.33% (68th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-20675?

Upgrade dl8-a firmware to 3.0.81 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2021-20675

MEDIUM

6.5

CVSS v3

NVD

Description

M-System DL8 series (type A (DL8-A) versions prior to Ver3.0, type B (DL8-B) versions prior to Ver3.0, type C (DL8-C) versions prior to Ver3.0, type D (DL8-D) versions prior to Ver3.0, and type E (DL8-E) versions prior to Ver3.0) allows remote authenticated attackers to cause a denial of service (DoS) condition via unspecified vectors.

How to fix

Remediation Available

dl8-a firmwareNVD

Affected:< 3.0.81Fixed in:3.0.81CVE-2021-20675derived from NVD

dl8-b firmwareNVD

Affected:< 3.0.77Fixed in:3.0.77CVE-2021-20675derived from NVD

dl8-c firmwareNVD

Affected:< 3.0.99Fixed in:3.0.99CVE-2021-20675derived from NVD

dl8-d firmwareNVD

Affected:< 3.0.91Fixed in:3.0.91CVE-2021-20675derived from NVD

dl8-e firmwareNVD

Affected:< 3.0.12Fixed in:3.0.12CVE-2021-20675derived from NVD

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.33%probability of exploitation in 30 days

68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

Vendor Advisory1

m-system.co.jp

Third-Party Advisory1

jvn.jp

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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.