Is CVE-2020-27784 in the CISA KEV catalog?

No. CVE-2020-27784 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-27784?

CVE-2020-27784 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-27784?

CVE-2020-27784 has an EPSS score of 0.22% (13th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-27784?

Upgrade linux on debian 11 to 5.9.6-1 or later.

CVE & CISA-KEV Catalog

CVE-2020-27784

MEDIUM

5.5

CVSS v3

NVD

Description

A vulnerability was found in the Linux kernel, where accessing a deallocated instance in printer_ioctl() printer_ioctl() tries to access of a printer_dev instance. However, use-after-free arises because it had been freed by gprinter_free().

CWE-201 CWE-416Use After Free

How to fix

Remediation Available

linuxDebian

Fixed in:5.9.6-1CVE-2020-27784

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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.22%probability of exploitation in 30 days

13thpercentile

Low risk: more likely to be exploited than 13% of all known CVEs.

References

Patch1

git.kernel.org

Related Vulnerabilities

Other CWE-201 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-16026	Medium	5.9	2.6%	-	Fix
CVE-2020-26085	Critical	9.9	2.5%	-	Fix
CVE-2017-2582	Medium	6.5	2.5%	-	Fix
CVE-2022-27779	Medium	5.3	2.4%	-	Fix
CVE-2024-32825	High	7.5	2.0%	-	-
CVE-2016-10518	High	7.5	2.0%	-	Fix

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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.