Read the docs
TI-2021-11527 Aliases CVE-2021-31383GHSA-m54q-hvr6-96wf

Stack-based buffer overflow in Juniper Junos OS

Priority LOW 35CWE-121Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

In Point to MultiPoint (P2MP) scenarios within established sessions between network or adjacent neighbors the improper use of a source to destination copy write operation combined with a Stack-based Buffer Overflow on certain specific packets processed by the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved sent by a remote unauthenticated network attacker causes the RPD to crash causing a Denial of Service (DoS). Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.2R1. Juniper Networks Junos OS Evolved 20.1 versions prior to 20.1R3-EVO; 20.2 versions prior to 20.2R3-EVO; 20.3 versions prior to 20.3R2-EVO.

Why it matters now

EPSS 0.01006 63rd percentileScored 2026-11-07
Fix Fixed Junos OS (Juniper Networks): 19.2R3-S2, 19.3R2-S6, 19.3R3-S2 +8Junos OS Evolved (Juniper Networks): 20.1R3-EVO, 20.2R3-EVO, 20.3R2-EVO

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
JuniperJunos OS19.2 to before 19.2R3-S2; 19.3 to before 19.3R2-S6, 19.3R3-S2; 19.4 to before 19.4R1-S4, 19.4R2-S4, 19.4R3-S3; 20.1 to before 20.1R2-S2, 20.1R3; 20.2 to before 20.2R2-S3, 20.2R3; 20.3 to before 20.3R219.2R3-S2, 19.3R2-S6, 19.3R3-S2, 19.4R1-S4, 19.4R2-S4, 19.4R3-S3, 20.1R2-S2, 20.1R3, 20.2R2-S3, 20.2R3, 20.3R2Patch availableCNA
JuniperJunos OS Evolved20.1 to before 20.1R3-EVO; 20.2 to before 20.2R3-EVO; 20.3 to before 20.3R2-EVO20.1R3-EVO, 20.2R3-EVO, 20.3R2-EVOPatch availableCNA
  • Junos OS VendorJuniper Affected 19.2 to before 19.2R3-S2; 19.3 to before 19.3R2-S6, 19.3R3-S2; 19.4 to before 19.4R1-S4, 19.4R2-S4, 19.4R3-S3; 20.1 to before 20.1R2-S2, 20.1R3; 20.2 to before 20.2R2-S3, 20.2R3; 20.3 to before 20.3R2 Fixed in 19.2R3-S2, 19.3R2-S6, 19.3R3-S2, 19.4R1-S4, 19.4R2-S4, 19.4R3-S3, 20.1R2-S2, 20.1R3, 20.2R2-S3, 20.2R3, 20.3R2 Patch available CNA
  • Junos OS Evolved VendorJuniper Affected 20.1 to before 20.1R3-EVO; 20.2 to before 20.2R3-EVO; 20.3 to before 20.3R2-EVO Fixed in 20.1R3-EVO, 20.2R3-EVO, 20.3R2-EVO Patch available CNA

CPE configurations NVD · 69

CPEVersionsRoleVendor
cpe:2.3:o:juniper:junos:19.2:-:*:*:*:*:*:*19.2VulnerableJuniper
cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:*19.2 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:*19.2 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:*19.2 r1-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:19.2:r1-s3:*:*:*:*:*:*19.2 r1-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:19.2:r1-s4:*:*:*:*:*:*19.2 r1-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:19.2:r1-s5:*:*:*:*:*:*19.2 r1-s5VulnerableJuniper
cpe:2.3:o:juniper:junos:19.2:r1-s6:*:*:*:*:*:*19.2 r1-s6VulnerableJuniper
cpe:2.3:o:juniper:junos:19.2:r2:*:*:*:*:*:*19.2 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:19.2:r2-s1:*:*:*:*:*:*19.2 r2-s1VulnerableJuniper
  • cpe:2.3:o:juniper:junos:19.2:-:*:*:*:*:*:* Versions 19.2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:* Versions 19.2 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:* Versions 19.2 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:* Versions 19.2 r1-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.2:r1-s3:*:*:*:*:*:* Versions 19.2 r1-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.2:r1-s4:*:*:*:*:*:* Versions 19.2 r1-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.2:r1-s5:*:*:*:*:*:* Versions 19.2 r1-s5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.2:r1-s6:*:*:*:*:*:* Versions 19.2 r1-s6 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.2:r2:*:*:*:*:*:* Versions 19.2 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.2:r2-s1:*:*:*:*:*:* Versions 19.2 r2-s1 Vulnerable ·Juniper
Show 59 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:juniper:junos:19.2:r3:*:*:*:*:*:*19.2 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:19.2:r3-s1:*:*:*:*:*:*19.2 r3-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.3:-:*:*:*:*:*:*19.3VulnerableJuniper
cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:*19.3 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:*19.3 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:*19.3 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:*19.3 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.3:r2-s2:*:*:*:*:*:*19.3 r2-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:19.3:r2-s3:*:*:*:*:*:*19.3 r2-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:19.3:r2-s4:*:*:*:*:*:*19.3 r2-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:19.3:r2-s5:*:*:*:*:*:*19.3 r2-s5VulnerableJuniper
cpe:2.3:o:juniper:junos:19.3:r3:*:*:*:*:*:*19.3 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:19.3:r3-s1:*:*:*:*:*:*19.3 r3-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:*19.4 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:*19.4 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:*19.4 r1-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:*19.4 r1-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:*19.4 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:*19.4 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:*19.4 r2-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:19.4:r2-s3:*:*:*:*:*:*19.4 r2-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:*19.4 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:19.4:r3-s1:*:*:*:*:*:*19.4 r3-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.4:r3-s2:*:*:*:*:*:*19.4 r3-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:*20.1 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:*20.1 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:*20.1 r1-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:*20.1 r1-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:*20.1 r1-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:20.1:r2:*:*:*:*:*:*20.1 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:20.1:r2-s1:*:*:*:*:*:*20.1 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:*20.2 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:*20.2 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:*20.2 r1-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:*20.2 r1-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:*20.2 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:20.2:r2-s1:*:*:*:*:*:*20.2 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:20.2:r2-s2:*:*:*:*:*:*20.2 r2-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:*20.3 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:*20.3 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.1:-:*:*:*:*:*:*20.1VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.1:r1:*:*:*:*:*:*20.1 r1VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.1:r1-s1:*:*:*:*:*:*20.1 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2:*:*:*:*:*:*20.1 r2VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s1:*:*:*:*:*:*20.1 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s2:*:*:*:*:*:*20.1 r2-s2VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s3:*:*:*:*:*:*20.1 r2-s3VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s4:*:*:*:*:*:*20.1 r2-s4VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s5:*:*:*:*:*:*20.1 r2-s5VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.2:-:*:*:*:*:*:*20.2VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.2:r1:*:*:*:*:*:*20.2 r1VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.2:r1-s1:*:*:*:*:*:*20.2 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.2:r2:*:*:*:*:*:*20.2 r2VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.2:r2-s1:*:*:*:*:*:*20.2 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.3:-:*:*:*:*:*:*20.3VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.3:r1:*:*:*:*:*:*20.3 r1VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.3:r1-s1:*:*:*:*:*:*20.3 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.3:r1-s2:*:*:*:*:*:*20.3 r1-s2VulnerableJuniper
cpe:2.3:o:juniper:junos_os_evolved:20.3:r1-s3:*:*:*:*:*:*20.3 r1-s3VulnerableJuniper
  • cpe:2.3:o:juniper:junos:19.2:r3:*:*:*:*:*:* Versions 19.2 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.2:r3-s1:*:*:*:*:*:* Versions 19.2 r3-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.3:-:*:*:*:*:*:* Versions 19.3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:* Versions 19.3 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:* Versions 19.3 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:* Versions 19.3 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:* Versions 19.3 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.3:r2-s2:*:*:*:*:*:* Versions 19.3 r2-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.3:r2-s3:*:*:*:*:*:* Versions 19.3 r2-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.3:r2-s4:*:*:*:*:*:* Versions 19.3 r2-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.3:r2-s5:*:*:*:*:*:* Versions 19.3 r2-s5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.3:r3:*:*:*:*:*:* Versions 19.3 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.3:r3-s1:*:*:*:*:*:* Versions 19.3 r3-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:* Versions 19.4 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:* Versions 19.4 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:* Versions 19.4 r1-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:* Versions 19.4 r1-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:* Versions 19.4 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:* Versions 19.4 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:* Versions 19.4 r2-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.4:r2-s3:*:*:*:*:*:* Versions 19.4 r2-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:* Versions 19.4 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.4:r3-s1:*:*:*:*:*:* Versions 19.4 r3-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.4:r3-s2:*:*:*:*:*:* Versions 19.4 r3-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:* Versions 20.1 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:* Versions 20.1 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:* Versions 20.1 r1-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:* Versions 20.1 r1-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:* Versions 20.1 r1-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.1:r2:*:*:*:*:*:* Versions 20.1 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.1:r2-s1:*:*:*:*:*:* Versions 20.1 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:* Versions 20.2 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:* Versions 20.2 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:* Versions 20.2 r1-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:* Versions 20.2 r1-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:* Versions 20.2 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.2:r2-s1:*:*:*:*:*:* Versions 20.2 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.2:r2-s2:*:*:*:*:*:* Versions 20.2 r2-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:* Versions 20.3 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:* Versions 20.3 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.1:-:*:*:*:*:*:* Versions 20.1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.1:r1:*:*:*:*:*:* Versions 20.1 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.1:r1-s1:*:*:*:*:*:* Versions 20.1 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.1:r2:*:*:*:*:*:* Versions 20.1 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s1:*:*:*:*:*:* Versions 20.1 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s2:*:*:*:*:*:* Versions 20.1 r2-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s3:*:*:*:*:*:* Versions 20.1 r2-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s4:*:*:*:*:*:* Versions 20.1 r2-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.1:r2-s5:*:*:*:*:*:* Versions 20.1 r2-s5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.2:-:*:*:*:*:*:* Versions 20.2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.2:r1:*:*:*:*:*:* Versions 20.2 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.2:r1-s1:*:*:*:*:*:* Versions 20.2 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.2:r2:*:*:*:*:*:* Versions 20.2 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.2:r2-s1:*:*:*:*:*:* Versions 20.2 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.3:-:*:*:*:*:*:* Versions 20.3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.3:r1:*:*:*:*:*:* Versions 20.3 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.3:r1-s1:*:*:*:*:*:* Versions 20.3 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.3:r1-s2:*:*:*:*:*:* Versions 20.3 r1-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos_os_evolved:20.3:r1-s3:*:*:*:*:*:* Versions 20.3 r1-s3 Vulnerable ·Juniper

Remediation

  • Fix · CNA Junos OS (Juniper Networks) Fixed in 19.2R3-S2, 19.3R2-S6, 19.3R3-S2, 19.4R1-S4, 19.4R2-S4, 19.4R3-S3, 20.1R2-S2, 20.1R3, 20.2R2-S3, 20.2R3, 20.3R2
  • Fix · CNA Junos OS Evolved (Juniper Networks) Fixed in 20.1R3-EVO, 20.2R3-EVO, 20.3R2-EVO

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-31383
  2. 2026-10-03 Alias added: GHSA-m54q-hvr6-96wf

References

Advisory 1

  • TI-2023-18638 Junos OS: EX and SRX Series: A PHP vulnerability in J-Web allows an unauthenticated to… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-01585 Out of Cycle Security Advisory: Junos OS: Security vulnerability in J-Web and web based (HTTP/HTTPS) services KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
  • TI-2025-15550 Junos OS: An local attacker with shell access can execute arbitrary code KEVCVSS 4.0MEDIUM 6.7
  • TI-2023-18644 Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary files KEVCVSS 3.1MEDIUM 5.3
  • TI-2023-18640 Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files KEVCVSS 3.1MEDIUM 5.3
See all 792 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences