CVE record · CVE-2021-31360

Junos OS and Junos OS Evolved: Denial of Service vulnerability in local file processing

CVSS 7.1 HighEPSS 0.0021 · 11th percentile

Published by the CVE Program (CNA: juniper) at 19 Oct 2021, 18:16 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Juniper Networks	Junos OS	affected 15.1 to before 15.1R7-S10 custom affected 17.4 to before 17.4R3-S5 custom affected 18.3 to before 18.3R3-S5 custom affected 18.4 to before 18.4R3-S9 custom affected 19.1 to before 19.1R3-S6 custom affected 19.2 to before 19.2R1-S7, 19.2R3-S3 custom affected 19.3 to before 19.3R2-S6, 19.3R3-S3 custom affected 19.4 to before 19.4R3-S6 custom affected 20.1 to before 20.1R2-S2, 20.1R3-S1 custom affected 20.2 to before 20.2R3-S2 custom affected 20.3 to before 20.3R3 custom affected 20.4 to before 20.4R2-S1, 20.4R3 custom and 1 more
Juniper Networks	Junos OS Evolved	affected unspecified to before 20.4R2-S3-EVO custom affected 21.1R1-EVO to before 21.1* custom

Identifiers: CVE-2021-31360
CNA: juniper
Weakness (CWE): CWE-20 · CWE-269
Tags: Juniper Networks Junos OS
Juniper Networks Junos OS Evolved
Privilege escalation
CWE-20
Published: 19 Oct 2021
Updated: 17 Sept 2024

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.1	High	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H	CNA (juniper)

CISA KEV Not listed.
EPSS 0.0021, the 11th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 19 Oct 2021. New records show when each source confirmed them.

Sources

References from the CNA

kb.juniper.net/JSA11222 confirm

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.