Is CVE-2021-39128 in the CISA KEV catalog?

No. CVE-2021-39128 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-39128?

CVE-2021-39128 has a CVSS v3 base score of 7.2 (HIGH).

What is the EPSS score for CVE-2021-39128?

CVE-2021-39128 has an EPSS score of 1.83% (76th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-39128?

Upgrade jira data center to 8.19.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-39128

HIGHEPSS 76th pctl

7.2

CVSS v3

NVD

Description

Affected versions of Atlassian Jira Server or Data Center using the Jira Service Management addon allow remote attackers with JIRA Administrators access to execute arbitrary Java code via a server-side template injection vulnerability in the Email Template feature. The affected versions of Jira Server or Data Center are before version 8.13.12, and from version 8.14.0 before 8.19.1.

CWE-1336 CWE-94Code Injection

How to fix

Remediation Available

jira data centerNVD

Affected:>= 8.14.0, < 8.19.1Fixed in:8.19.1CVE-2021-39128derived from NVD

jira serverNVD

Affected:>= 8.14.0, < 8.19.1Fixed in:8.19.1CVE-2021-39128derived 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 RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.83%probability of exploitation in 30 days

76thpercentile

Elevated risk: more likely to be exploited than 76% of all known CVEs.

References

Vendor Advisory1

jira.atlassian.com

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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.