VulnerabilityModified

CVE-2017-5983

The JIRA Workflow Designer Plugin in Atlassian JIRA Server before 6.3.0 improperly uses an XML parser and deserializer, which allows remote attackers to execute arbitrary code, read arbitrary files, or cause a denial of service via a crafted serialized…

CRITICAL 9.8EPSS 16.2%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 16.2%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

CVSS 3.0: 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 16.24% probability · 97th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-502
Affected: atlassian/jira
Source: cve@mitre.org

EPSS trend

EPSS moved from 7.5% on 21 September 2026 to 16.2% on 27 October 2026, peaking at 16.4% on 22 September 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

References

http://codewhitesec.blogspot.com/2017/04/amf.htmlTechnical Description
http://www.securityfocus.com/bid/97379Third Party Advisory, VDB Entry
https://confluence.atlassian.com/jira063/jira-security-advisory-2017-03-09-875604401.htmlVendor Advisory
https://jira.atlassian.com/browse/JRASERVER-64077Vendor Advisory
https://www.kb.cert.org/vuls/id/307983Third Party Advisory, US Government Resource, VDB Entry
http://codewhitesec.blogspot.com/2017/04/amf.htmlTechnical Description
http://www.securityfocus.com/bid/97379Third Party Advisory, VDB Entry
https://confluence.atlassian.com/jira063/jira-security-advisory-2017-03-09-875604401.htmlVendor Advisory
https://jira.atlassian.com/browse/JRASERVER-64077Vendor Advisory
https://www.kb.cert.org/vuls/id/307983Third Party Advisory, US Government Resource, VDB Entry

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.