CVE-2021-31381

Name: CVE-2021-31381
Creator: NVD / NIST
Published: 2021-10-19T19:15:11.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 1.12%

Last modified Jun 17, 2026

CVE-2021-31381 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. A configuration weakness in the JBoss Application Server (AppSvr) component of Juniper Networks SRC Series allows a remote attacker to send a specially crafted query to cause the web server to delete files which may allow the attacker to disrupt the integrity and availability of the system.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.

Description

A configuration weakness in the JBoss Application Server (AppSvr) component of Juniper Networks SRC Series allows a remote attacker to send a specially crafted query to cause the web server to delete files which may allow the attacker to disrupt the integrity and availability of the system.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

1.12%

62.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Juniper	Session And Resource Control	< 4.12.0r5
Juniper	Session And Resource Control	>= 4.13.0r1, < 4.13.0r3

References

https://kb.juniper.net/JSA11248Patch, Vendor Advisory
https://kb.juniper.net/JSA11248Patch, Vendor Advisory

Timeline

Published: Oct 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31381?

How severe is CVE-2021-31381?

CVE-2021-31381 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.12% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31381?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-31381?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST