Is CVE-2020-11047 in the CISA KEV catalog?

No. CVE-2020-11047 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-11047?

CVE-2020-11047 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-11047?

CVE-2020-11047 has an EPSS score of 1.71% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-11047?

Upgrade freerdp2 on debian 11 to 2.1.1+dfsg1-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2020-11047

MEDIUMEPSS 75th pctl

5.5

CVSS v3

NVD

Description

In FreeRDP after 1.1 and before 2.0.0, there is an out-of-bounds read in autodetect_recv_bandwidth_measure_results. A malicious server can extract up to 8 bytes of client memory with a manipulated message by providing a short input and reading the measurement result data. This has been patched in 2.0.0.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

freerdp2Debian

Fixed in:2.1.1+dfsg1-1CVE-2020-11047

freerdp2Ubuntu

Fixed in:2.1.1+dfsg1-0ubuntu0.18.04.1USN-4379-1

Fixed in:2.1.1+dfsg1-0ubuntu0.20.04.1USN-4379-1

libfreerdp-client2-2Ubuntu

Fixed in:2.1.1+dfsg1-0ubuntu0.18.04.1USN-4379-1

Fixed in:2.1.1+dfsg1-0ubuntu0.20.04.1USN-4379-1

libfreerdp-server2-2Ubuntu

Fixed in:2.1.1+dfsg1-0ubuntu0.18.04.1USN-4379-1

Fixed in:2.1.1+dfsg1-0ubuntu0.20.04.1USN-4379-1

libfreerdp2-2Ubuntu

Fixed in:2.1.1+dfsg1-0ubuntu0.18.04.1USN-4379-1

Fixed in:2.1.1+dfsg1-0ubuntu0.20.04.1USN-4379-1

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 ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

1.71%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Third-Party Advisory3

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	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.