CVE-2021-20318
A remote attacker could use this flaw to execute arbitrary code with the permissions of the application using a JMS ObjectMessage.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.76%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The HornetQ component of Artemis in EAP 7 was not updated with the fix for CVE-2016-4978. A remote attacker could use this flaw to execute arbitrary code with the permissions of the application using a JMS ObjectMessage.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.76% probability · 78th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- redhat/jboss enterprise application platform
- Source
- secalert@redhat.com
EPSS 1.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2010559Issue Tracking, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2010559Issue Tracking, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.