Is CVE-2021-31909 in the CISA KEV catalog?

No. CVE-2021-31909 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-31909?

CVE-2021-31909 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-31909?

CVE-2021-31909 has an EPSS score of 3.21% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-31909?

Upgrade JetBrains TeamCity to 2020.2.3 or later.

CVE & CISA-KEV Catalog

CVE-2021-31909

CRITICALEPSS 87th pctl

9.8

CVSS v3

NVD

Description

In JetBrains TeamCity before 2020.2.3, argument injection leading to remote code execution was possible.

CWE-88

How to fix

Remediation Available

JetBrains TeamCityWindows application

Affected:2020.2.3Fixed in:2020.2.3JetBrains s.r.o.

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

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.21%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Vendor Advisory2

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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.