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TI-2021-00202 Aliases CVE-2021-0268GHSA-cfvh-72c5-6hp5

HTTP response splitting in Juniper Junos OS

Priority MEDIUM 42CWE-113Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution, Cross-site scripting
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120, CWE-79 and the CVSS impact.

Summary

An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') weakness in J-web of Juniper Networks Junos OS leads to buffer overflows, segment faults, or other impacts, which allows an attacker to modify the integrity of the device and exfiltration information from the device without authentication. The weakness can be exploited to facilitate cross-site scripting (XSS), cookie manipulation (modifying session cookies, stealing cookies) and more. This weakness can also be exploited by directing a user to a seemingly legitimate link from the affected site. The attacker requires no special access or permissions to the device to carry out such attacks. This issue affects: Juniper Networks Junos OS: 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S3; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2, 19.4R3; 20.1 versions prior to 20.1R1-S2, 20.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 18.1R1.

Why it matters now

EPSS 0.00853 58th percentileScored 2026-11-07
Fix Fixed Junos OS (Juniper Networks): 18.1R3-S11, 18.2R3-S5, 18.3R2-S4 +13

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
JuniperJunos OS18.1 to before 18.1R3-S11; 18.2 to before 18.2R3-S5; 18.3 to before 18.3R2-S4, 18.3R3-S3; 18.4 to before 18.4R2-S5, 18.4R3-S3; 19.1 to before 19.1R2-S2, 19.1R3-S2; 19.2 to before 19.2R1-S5, 19.2R2; 19.3 to before 19.3R3; 19.4 to before 19.4R1-S3, 19.4R2, 19.4R3; 20.1 to before 20.1R1-S2, 20.1R218.1R3-S11, 18.2R3-S5, 18.3R2-S4, 18.3R3-S3, 18.4R2-S5, 18.4R3-S3, 19.1R2-S2, 19.1R3-S2, 19.2R1-S5, 19.2R2, 19.3R3, 19.4R1-S3, 19.4R2, 19.4R3, 20.1R1-S2, 20.1R2Patch availableCNA
  • Junos OS VendorJuniper Affected 18.1 to before 18.1R3-S11; 18.2 to before 18.2R3-S5; 18.3 to before 18.3R2-S4, 18.3R3-S3; 18.4 to before 18.4R2-S5, 18.4R3-S3; 19.1 to before 19.1R2-S2, 19.1R3-S2; 19.2 to before 19.2R1-S5, 19.2R2; 19.3 to before 19.3R3; 19.4 to before 19.4R1-S3, 19.4R2, 19.4R3; 20.1 to before 20.1R1-S2, 20.1R2 Fixed in 18.1R3-S11, 18.2R3-S5, 18.3R2-S4, 18.3R3-S3, 18.4R2-S5, 18.4R3-S3, 19.1R2-S2, 19.1R3-S2, 19.2R1-S5, 19.2R2, 19.3R3, 19.4R1-S3, 19.4R2, 19.4R3, 20.1R1-S2, 20.1R2 Patch available CNA

CPE configurations NVD · 100

CPEVersionsRoleVendor
cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:*18.1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:*18.1 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:*18.1 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:*18.1 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:*18.1 r2-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:*18.1 r2-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r3:*:*:*:*:*:*18.1 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r3-s1:*:*:*:*:*:*18.1 r3-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r3-s10:*:*:*:*:*:*18.1 r3-s10VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:*18.1 r3-s2VulnerableJuniper
  • cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:* Versions 18.1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:* Versions 18.1 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:* Versions 18.1 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:* Versions 18.1 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:* Versions 18.1 r2-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:* Versions 18.1 r2-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r3:*:*:*:*:*:* Versions 18.1 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r3-s1:*:*:*:*:*:* Versions 18.1 r3-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r3-s10:*:*:*:*:*:* Versions 18.1 r3-s10 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:* Versions 18.1 r3-s2 Vulnerable ·Juniper
Show 90 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:juniper:junos:18.1:r3-s3:*:*:*:*:*:*18.1 r3-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r3-s4:*:*:*:*:*:*18.1 r3-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r3-s5:*:*:*:*:*:*18.1 r3-s5VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r3-s6:*:*:*:*:*:*18.1 r3-s6VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r3-s7:*:*:*:*:*:*18.1 r3-s7VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r3-s8:*:*:*:*:*:*18.1 r3-s8VulnerableJuniper
cpe:2.3:o:juniper:junos:18.1:r3-s9:*:*:*:*:*:*18.1 r3-s9VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:*18.2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:*18.2 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r1:-:*:*:*:*:*18.2 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r1-s2:*:*:*:*:*:*18.2 r1-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:*18.2 r1-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:*18.2 r1-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r1-s5:*:*:*:*:*:*18.2 r1-s5VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r2:*:*:*:*:*:*18.2 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:*18.2 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r2-s2:*:*:*:*:*:*18.2 r2-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r2-s3:*:*:*:*:*:*18.2 r2-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r2-s4:*:*:*:*:*:*18.2 r2-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r2-s5:*:*:*:*:*:*18.2 r2-s5VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r2-s6:*:*:*:*:*:*18.2 r2-s6VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r2-s7:*:*:*:*:*:*18.2 r2-s7VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r3:*:*:*:*:*:*18.2 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r3-s1:*:*:*:*:*:*18.2 r3-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r3-s2:*:*:*:*:*:*18.2 r3-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r3-s3:*:*:*:*:*:*18.2 r3-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.2:r3-s4:*:*:*:*:*:*18.2 r3-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:*18.3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:*18.3 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:*18.3 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:*18.3 r1-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:*18.3 r1-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r1-s4:*:*:*:*:*:*18.3 r1-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:*18.3 r1-s5VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r1-s6:*:*:*:*:*:*18.3 r1-s6VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:*18.3 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:*18.3 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:*18.3 r2-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r2-s3:*:*:*:*:*:*18.3 r2-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r3:*:*:*:*:*:*18.3 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r3-s1:*:*:*:*:*:*18.3 r3-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.3:r3-s2:*:*:*:*:*:*18.3 r3-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:*18.4VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:*18.4 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:*18.4 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:*18.4 r1-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:*18.4 r1-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:*18.4 r1-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:*18.4 r1-s5VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:*18.4 r1-s6VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:*18.4 r1-s7VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:*18.4 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:*18.4 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:*18.4 r2-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:*18.4 r2-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:*18.4 r2-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r3:*:*:*:*:*:*18.4 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r3-s1:*:*:*:*:*:*18.4 r3-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:18.4:r3-s2:*:*:*:*:*:*18.4 r3-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:*19.1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:*19.1 r1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:*19.1 r1-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:*19.1 r1-s2VulnerableJuniper
cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:*19.1 r1-s3VulnerableJuniper
cpe:2.3:o:juniper:junos:19.1:r1-s4:*:*:*:*:*:*19.1 r1-s4VulnerableJuniper
cpe:2.3:o:juniper:junos:19.1:r1-s5:*:*:*:*:*:*19.1 r1-s5VulnerableJuniper
cpe:2.3:o:juniper:junos:19.1:r2:*:*:*:*:*:*19.1 r2VulnerableJuniper
cpe:2.3:o:juniper:junos:19.1:r2-s1:*:*:*:*:*:*19.1 r2-s1VulnerableJuniper
cpe:2.3:o:juniper:junos:19.1:r3:*:*:*:*:*:*19.1 r3VulnerableJuniper
cpe:2.3:o:juniper:junos:19.1:r3-s1:*:*:*:*:*:*19.1 r3-s1VulnerableJuniper
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:19.3:-:*:*:*:*:*:*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:19.4: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: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:18.1:r3-s3:*:*:*:*:*:* Versions 18.1 r3-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r3-s4:*:*:*:*:*:* Versions 18.1 r3-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r3-s5:*:*:*:*:*:* Versions 18.1 r3-s5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r3-s6:*:*:*:*:*:* Versions 18.1 r3-s6 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r3-s7:*:*:*:*:*:* Versions 18.1 r3-s7 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r3-s8:*:*:*:*:*:* Versions 18.1 r3-s8 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.1:r3-s9:*:*:*:*:*:* Versions 18.1 r3-s9 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:* Versions 18.2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:* Versions 18.2 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r1:-:*:*:*:*:* Versions 18.2 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r1-s2:*:*:*:*:*:* Versions 18.2 r1-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:* Versions 18.2 r1-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:* Versions 18.2 r1-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r1-s5:*:*:*:*:*:* Versions 18.2 r1-s5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r2:*:*:*:*:*:* Versions 18.2 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:* Versions 18.2 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r2-s2:*:*:*:*:*:* Versions 18.2 r2-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r2-s3:*:*:*:*:*:* Versions 18.2 r2-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r2-s4:*:*:*:*:*:* Versions 18.2 r2-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r2-s5:*:*:*:*:*:* Versions 18.2 r2-s5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r2-s6:*:*:*:*:*:* Versions 18.2 r2-s6 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r2-s7:*:*:*:*:*:* Versions 18.2 r2-s7 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r3:*:*:*:*:*:* Versions 18.2 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r3-s1:*:*:*:*:*:* Versions 18.2 r3-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r3-s2:*:*:*:*:*:* Versions 18.2 r3-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r3-s3:*:*:*:*:*:* Versions 18.2 r3-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.2:r3-s4:*:*:*:*:*:* Versions 18.2 r3-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:* Versions 18.3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:* Versions 18.3 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:* Versions 18.3 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:* Versions 18.3 r1-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:* Versions 18.3 r1-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r1-s4:*:*:*:*:*:* Versions 18.3 r1-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:* Versions 18.3 r1-s5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r1-s6:*:*:*:*:*:* Versions 18.3 r1-s6 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:* Versions 18.3 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:* Versions 18.3 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:* Versions 18.3 r2-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r2-s3:*:*:*:*:*:* Versions 18.3 r2-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r3:*:*:*:*:*:* Versions 18.3 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r3-s1:*:*:*:*:*:* Versions 18.3 r3-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.3:r3-s2:*:*:*:*:*:* Versions 18.3 r3-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:* Versions 18.4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:* Versions 18.4 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:* Versions 18.4 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:* Versions 18.4 r1-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:* Versions 18.4 r1-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:* Versions 18.4 r1-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:* Versions 18.4 r1-s5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:* Versions 18.4 r1-s6 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:* Versions 18.4 r1-s7 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:* Versions 18.4 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:* Versions 18.4 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:* Versions 18.4 r2-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:* Versions 18.4 r2-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:* Versions 18.4 r2-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r3:*:*:*:*:*:* Versions 18.4 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r3-s1:*:*:*:*:*:* Versions 18.4 r3-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:18.4:r3-s2:*:*:*:*:*:* Versions 18.4 r3-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:* Versions 19.1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:* Versions 19.1 r1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:* Versions 19.1 r1-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:* Versions 19.1 r1-s2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:* Versions 19.1 r1-s3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.1:r1-s4:*:*:*:*:*:* Versions 19.1 r1-s4 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.1:r1-s5:*:*:*:*:*:* Versions 19.1 r1-s5 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.1:r2:*:*:*:*:*:* Versions 19.1 r2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.1:r2-s1:*:*:*:*:*:* Versions 19.1 r2-s1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.1:r3:*:*:*:*:*:* Versions 19.1 r3 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:19.1:r3-s1:*:*:*:*:*:* Versions 19.1 r3-s1 Vulnerable ·Juniper
  • 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:19.3:-:*:*:*:*:*:* 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:19.4: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: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

Remediation

  • Fix · CNA Junos OS (Juniper Networks) Fixed in 18.1R3-S11, 18.2R3-S5, 18.3R2-S4, 18.3R3-S3, 18.4R2-S5, 18.4R3-S3, 19.1R2-S2, 19.1R3-S2, 19.2R1-S5, 19.2R2, 19.3R3, 19.4R1-S3, 19.4R2, 19.4R3, 20.1R1-S2, 20.1R2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-0268
  2. 2026-10-03 Alias added: GHSA-cfvh-72c5-6hp5

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