What is CVE-2021-31373?

CVE-2021-31373 is a high-severity vulnerability in Juniper Junos, classified under Improper Input Validation. CVSS score: 8.0/10. Published 2021-10-19.

How severe is CVE-2021-31373?

High severity. CVSS v3 base score is 8.0 out of 10.

XSS in Juniper Junos

CVE-2021-31373

A persistent Cross-Site Scripting (XSS) vulnerability in Juniper Networks Junos OS on SRX Series, J-Web interface may allow a remote authenticated user to inject persistent and malicious scripts. An attacker can exploit this vulnerability…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.008 (51.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

Affected products

Juniper Junos — versions 18.2, 18.3, 18.4
Juniper Srx100
Juniper Srx110
Juniper Srx1400
Juniper Srx1500
Juniper Srx210
Juniper Srx220
Juniper Srx240
Juniper Srx240h2
Juniper Srx300

Weakness classification (CWE)

References

sirt@juniper.net (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-31373?: CVE-2021-31373 is a high-severity vulnerability in Juniper Junos, classified under Improper Input Validation. CVSS score: 8.0/10. Published 2021-10-19.
How severe is CVE-2021-31373?: High severity. CVSS v3 base score is 8.0 out of 10.