CVE-2020-36239
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…
- 9.8CriticalCVSS base score
- 49.8%Exploitation in 30 daysEPSS · top 1.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By atlassian
- 6 months later
· 6 months later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 49.8% · top 1.1% of all CVEs (11 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
- affected 6.3.0 – < unspecified
- affected unspecified – < 8.5.16
- affected 8.6.0 – < unspecified
- affected unspecified – < 8.13.8
- affected 8.14.0 – < unspecified
- affected unspecified – < 8.17.0
Atlassian · Jira Core Data Center
- affected 6.3.0 – < unspecified
- affected unspecified – < 8.5.16
- affected 8.6.0 – < unspecified
- affected unspecified – < 8.13.8
- affected 8.14.0 – < unspecified
- affected unspecified – < 8.17.0
Atlassian · Jira Software Data Center
- affected 6.3.0 – < unspecified
- affected unspecified – < 8.5.16
- affected 8.6.0 – < unspecified
- affected unspecified – < 8.13.8
- affected 8.14.0 – < unspecified
- affected unspecified – < 8.17.0
Atlassian · Jira Service Management Data Center
- affected 2.0.2 – < unspecified
- affected unspecified – < 4.5.16
- affected 4.6.0 – < unspecified
- affected unspecified – < 4.13.8
- affected 4.14.0 – < unspecified
- affected unspecified – < 4.17.0
References
References3
- https://jira.atlassian.com/browse/JSDSERVER-8454 (opens in a new tab)x_refsource_MISCx_transferred
- https://jira.atlassian.com/browse/JRASERVER-72566 (opens in a new tab)x_refsource_MISCx_transferred
- https://confluence.atlassian.com/adminjiraserver/jira-data-center-and-jira-service-management-data-center-security-advisory-2021-07-21-1063571388.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2020-23784 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2020-36239)Record last updated .