Is CVE-2020-17519 in the CISA KEV catalog?

Yes. CVE-2020-17519 is on the CISA Known Exploited Vulnerabilities list, added 2024-05-23.

What is the CVSS severity of CVE-2020-17519?

CVE-2020-17519 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2020-17519?

CVE-2020-17519 has an EPSS score of 97.86% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-17519?

Upgrade flink to 1.11.3 or later.

CVE & CISA-KEV Catalog

CVE-2020-17519

HIGHCISA KEVEPSS 100th pctl

7.5

CVSS v3

NVD

Description

A change introduced in Apache Flink 1.11.0 (and released in 1.11.1 and 1.11.2 as well) allows attackers to read any file on the local filesystem of the JobManager through the REST interface of the JobManager process. Access is restricted to files accessible by the JobManager process. All users should upgrade to Flink 1.11.3 or 1.12.0 if their Flink instance(s) are exposed. The issue was fixed in commit b561010b0ee741543c3953306037f00d7a9f0801 from apache/flink:master.

CWE-552

How to fix

Remediation Available

flinkNVD

Affected:>= 1.11.0, < 1.11.3Fixed in:1.11.3CVE-2020-17519derived from NVD

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

97.86%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Apache Flink Improper Access Control Vulnerability

Apache Flink contains an improper access control vulnerability that allows an attacker to read any file on the local filesystem of the JobManager through its REST interface.

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Remediation due: 2024-06-13

References

Exploit1

packetstormsecurity.com

Vendor Advisory5

Third-Party Advisory1

openwall.com

Government Resource1

cisa.gov

Issue Tracking6

Mailing List3

Related Vulnerabilities

Other CWE-552 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-11371	High	7.5	92%	KEV	Fix
CVE-2023-50164	Critical	9.8	81%	-	Fix
CVE-2016-3715	Medium	5.5	75%	KEV	Fix
CVE-2020-15175	High	7.4	71%	-	Fix
CVE-2021-39316	High	7.5	67%	-	-
CVE-2017-14942	Critical	9.8	61%	-	-

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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 2025-10-27.