CRITICAL
Jira Data Center, Jira Core Data Center, Jira Software Data Center from version 6.3.0 before 8.5.16, from 8.6.0 before 8.13.8, from 8.14.0 before 8.17.0 and Jira Service Management Data Center from version 2.0.2 before 4.5.16, from version 4.6.0 before 4.13.8, and from version 4.14.0 before 4.17.0 exposed a Ehcache RMI network service which attackers, who can connect to the service, on port 40001 and potentially 40011[0][1], could execute arbitrary code of their choice in Jira through deserialization due to a missing authentication vulnerability
Published Jul 29, 2021
9.8
CRITICALCVSS 3.1
EPSS 49.82%
Description
Jira Data Center, Jira Core Data Center, Jira Software Data Center from version 6.3.0 before 8.5.16, from 8.6.0 before 8.13.8, from 8.14.0 before 8.17.0 and Jira Service Management Data Center from version 2.0.2 before 4.5.16, from version 4.6.0 before 4.13.8, and from version 4.14.0 before 4.17.0 exposed a Ehcache RMI network service which attackers, who can connect to the service, on port 40001 and potentially 40011[0][1], could execute arbitrary code of their choice in Jira through deserialization due to a missing authentication vulnerability. While Atlassian strongly suggests restricting access to the Ehcache ports to only Data Center instances, fixed versions of Jira will now require a shared secret in order to allow access to the Ehcache service. [0] In Jira Data Center, Jira Core Data Center, and Jira Software Data Center versions prior to 7.13.1, the Ehcache object port can be randomly allocated. [1] In Jira Service Management Data Center versions prior to 3.16.1, the Ehcache object port can be randomly allocated.
Affected products
-
- Version 6.3.0StatusaffectedConstraints<unspecified
- Version 8.14.0StatusaffectedConstraints<unspecified
- Version 8.6.0StatusaffectedConstraints<unspecified
- Version unspecifiedStatusaffectedConstraints<8.13.8
- Version unspecifiedStatusaffectedConstraints<8.17.0
- Version unspecifiedStatusaffectedConstraints<8.5.16
- Version
-
- Version 6.3.0StatusaffectedConstraints<unspecified
- Version 8.14.0StatusaffectedConstraints<unspecified
- Version 8.6.0StatusaffectedConstraints<unspecified
- Version unspecifiedStatusaffectedConstraints<8.13.8
- Version unspecifiedStatusaffectedConstraints<8.17.0
- Version unspecifiedStatusaffectedConstraints<8.5.16
- Version
-
- Version 2.0.2StatusaffectedConstraints<unspecified
- Version 4.14.0StatusaffectedConstraints<unspecified
- Version 4.6.0StatusaffectedConstraints<unspecified
- Version unspecifiedStatusaffectedConstraints<4.13.8
- Version unspecifiedStatusaffectedConstraints<4.17.0
- Version unspecifiedStatusaffectedConstraints<4.5.16
- Version
-
- Version 6.3.0StatusaffectedConstraints<unspecified
- Version 8.14.0StatusaffectedConstraints<unspecified
- Version 8.6.0StatusaffectedConstraints<unspecified
- Version unspecifiedStatusaffectedConstraints<8.13.8
- Version unspecifiedStatusaffectedConstraints<8.17.0
- Version unspecifiedStatusaffectedConstraints<8.5.16
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Atlassian | Jira Core Data Center | n/a |
| |||||||||||||||||||||
| Atlassian | Jira Data Center | n/a |
| |||||||||||||||||||||
| Atlassian | Jira Service Management Data Center | n/a |
| |||||||||||||||||||||
| Atlassian | Jira Software Data Center | n/a |
|
OR
- ≥ 6.3.0 · < 8.5.16
- ≥ 8.6.0 · < 8.13.8
- ≥ 8.14.0 · < 8.17.0
- ≥ 2.0.2 · < 4.5.16
- ≥ 4.6.0 · < 4.13.8
- ≥ 4.14.0 · < 4.17.0
-
- Version 6.3.0StatusaffectedConstraints<8.5.16
- Version 8.14.0StatusaffectedConstraints<8.17.0
- Version 8.6.0StatusaffectedConstraints<8.13.8
- Version
-
- Version 2.0.2StatusaffectedConstraints<4.5.16
- Version 4.6.0StatusaffectedConstraints<4.13.8
- Version
-
- Version 4.14.0StatusaffectedConstraints<4.17.0
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Atlassian | Jira Data Center | n/a |
| ||||||||||||
| Atlassian | Jira Service Desk | n/a |
| ||||||||||||
| Atlassian | Jira Service Management | n/a |
|
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Oct 17, 2024 · SSVC 2.0.3
49.82% 0.49817
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
EPSS probability 0.49817
Score over time
2021-2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (63 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 49.82% (0.49817) | 98.87th | v5 (v2026.06.15) |
| Aug 24, 2026 | 48.88% (0.48883) | 98.79th | v5 (v2026.06.15) |
| Jul 24, 2026 | 46.69% (0.46689) | 98.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 48.88% (0.48883) | 98.72th | v5 (v2026.06.15) |
| Mar 4, 2026 | 16.17% (0.16173) | 94.67th | v4 (v2025.03.14) |
| Mar 1, 2026 | 4.18% (0.04183) | 88.55th | v4 (v2025.03.14) |
| Feb 4, 2026 | 16.17% (0.16173) | 94.62th | v4 (v2025.03.14) |
| Feb 1, 2026 | 4.18% (0.04183) | 88.48th | v4 (v2025.03.14) |
| Jan 4, 2026 | 16.17% (0.16173) | 94.59th | v4 (v2025.03.14) |
| Jan 1, 2026 | 4.18% (0.04183) | 88.42th | v4 (v2025.03.14) |
| Dec 4, 2025 | 16.17% (0.16173) | 94.54th | v4 (v2025.03.14) |
| Dec 1, 2025 | 4.18% (0.04183) | 88.34th | v4 (v2025.03.14) |
| Nov 21, 2025 | 16.17% (0.16173) | 94.53th | v4 (v2025.03.14) |
| Nov 18, 2025 | 12.52% (0.12516) | 93.27th | v4 (v2025.03.14) |
| Nov 4, 2025 | 16.17% (0.16173) | 94.52th | v4 (v2025.03.14) |
| Nov 1, 2025 | 4.18% (0.04183) | 88.25th | v4 (v2025.03.14) |
| Oct 4, 2025 | 16.17% (0.16173) | 94.56th | v4 (v2025.03.14) |
| Oct 1, 2025 | 4.18% (0.04183) | 88.28th | v4 (v2025.03.14) |
| Sep 4, 2025 | 16.17% (0.16173) | 94.57th | v4 (v2025.03.14) |
| Sep 1, 2025 | 4.18% (0.04183) | 88.34th | v4 (v2025.03.14) |
| Aug 6, 2025 | 16.17% (0.16173) | 94.53th | v4 (v2025.03.14) |
| Aug 1, 2025 | 4.18% (0.04183) | 88.35th | v4 (v2025.03.14) |
| Jul 4, 2025 | 16.17% (0.16173) | 94.51th | v4 (v2025.03.14) |
| Jul 1, 2025 | 4.18% (0.04183) | 88.27th | v4 (v2025.03.14) |
| Jun 6, 2025 | 16.17% (0.16173) | 94.45th | v4 (v2025.03.14) |
| Jun 4, 2025 | 4.18% (0.04183) | 88.15th | v4 (v2025.03.14) |
| Jun 1, 2025 | 6.11% (0.06111) | 90.33th | v4 (v2025.03.14) |
| May 13, 2025 | 22.07% (0.22065) | 95.44th | v4 (v2025.03.14) |
| May 4, 2025 | 20.32% (0.20325) | 95.16th | v4 (v2025.03.14) |
| May 1, 2025 | 7.33% (0.07331) | 91.22th | v4 (v2025.03.14) |
| Apr 9, 2025 | 20.32% (0.20325) | 95.05th | v4 (v2025.03.14) |
| Apr 8, 2025 | 7.33% (0.07331) | 90.87th | v4 (v2025.03.14) |
| Apr 1, 2025 | 20.32% (0.20325) | 95.05th | v4 (v2025.03.14) |
| Mar 31, 2025 | 7.33% (0.07331) | 90.84th | v4 (v2025.03.14) |
| Mar 30, 2025 | 20.32% (0.20325) | 95.05th | v4 (v2025.03.14) |
| Mar 29, 2025 | 31.05% (0.31050) | 94.88th | v4 (v2025.03.14) |
| Mar 28, 2025 | 20.32% (0.20325) | 95.05th | v4 (v2025.03.14) |
| Mar 27, 2025 | 7.33% (0.07331) | 90.43th | v4 (v2025.03.14) |
| Mar 25, 2025 | 20.32% (0.20325) | 95.01th | v4 (v2025.03.14) |
| Mar 24, 2025 | 7.33% (0.07331) | 90.84th | v4 (v2025.03.14) |
| Mar 23, 2025 | 20.32% (0.20325) | 94.80th | v4 (v2025.03.14) |
| Mar 22, 2025 | 7.33% (0.07331) | 90.94th | v4 (v2025.03.14) |
| Mar 19, 2025 | 20.32% (0.20325) | 94.83th | v4 (v2025.03.14) |
| Mar 18, 2025 | 7.33% (0.07331) | 91.06th | v4 (v2025.03.14) |
| Mar 17, 2025 | 20.32% (0.20325) | 95.06th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.44% (0.01445) | 87.18th | v3 (v2023.03.01) |
| Jun 26, 2024 | 1.02% (0.01024) | 83.88th | v3 (v2023.03.01) |
| Apr 5, 2024 | 0.97% (0.00970) | 83.05th | v3 (v2023.03.01) |
| Mar 23, 2024 | 1.15% (0.01149) | 84.48th | v3 (v2023.03.01) |
| Feb 25, 2024 | 1.37% (0.01367) | 85.87th | v3 (v2023.03.01) |
| Feb 7, 2024 | 1.33% (0.01327) | 84.61th | v3 (v2023.03.01) |
| Jan 25, 2024 | 1.13% (0.01125) | 83.11th | v3 (v2023.03.01) |
| May 18, 2023 | 1.47% (0.01468) | 84.76th | v3 (v2023.03.01) |
| Apr 18, 2023 | 2.07% (0.02067) | 87.36th | v3 (v2023.03.01) |
| Mar 20, 2023 | 2.34% (0.02337) | 88.04th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.02% (0.02019) | 87.09th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.94% (0.03938) | 85.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.94% (0.03938) | 84.44th | v2 (v2022.01.01) |
| Feb 4, 2022 | 30.44% (0.30441) | 96.32th | v2 (v2022.01.01) |
| Feb 3, 2022 | 6.22% (0.06225) | 82.33th | v1 |
| Jan 6, 2022 | 6.22% (0.06225) | 82.16th | v1 |
| Sep 1, 2021 | 1.46% (0.01458) | 72.29th | v1 |
| Jul 30, 2021 | 1.46% (0.01458) | 0.00th | v1 |
Weaknesses (2)
References (3)
- https://confluence.atlassian.com/adminjiraserver/jira-data-center-and-jira-service-management-data-center-security-advisory-2021-07-21-1063571388.html x_refsource_MISCPatchVendor Advisory
- https://jira.atlassian.com/browse/JRASERVER-72566 x_refsource_MISCIssue TrackingVendor Advisory
- https://jira.atlassian.com/browse/JSDSERVER-8454 x_refsource_MISCIssue TrackingVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://confluence.atlassian.com/adminjiraserver/jira-data-center-and-jira-service-management-data-center-security-advisory-2021-07-21-1063571388.html | x_refsource_MISCPatchVendor Advisory | |
| https://jira.atlassian.com/browse/JRASERVER-72566 | x_refsource_MISCIssue TrackingVendor Advisory | |
| https://jira.atlassian.com/browse/JSDSERVER-8454 | x_refsource_MISCIssue TrackingVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner atlassian
Published Jul 29, 2021
Updated Oct 17, 2024
Reserved Jan 27, 2021
Link CVE-2020-36239
CISA Vulnrichment
Updated Oct 17, 2024