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TI-2017-07787 Aliases CVE-2017-10621GHSA-qcrj-f7hq-vcc3

Junos OS: Denial of service vulnerability in telnetd

Priority LOW 28CWE-400Published · 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 · Low
Fix status
Fixed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

A denial of service vulnerability in telnetd service on Juniper Networks Junos OS allows remote unauthenticated attackers to cause a denial of service. Affected Junos OS releases are: 12.1X46 prior to 12.1X46-D71; 12.3X48 prior to 12.3X48-D50; 14.1 prior to 14.1R8-S5, 14.1R9; 14.1X53 prior to 14.1X53-D50; 14.2 prior to 14.2R7-S9, 14.2R8; 15.1 prior to 15.1F2-S16, 15.1F5-S7, 15.1F6-S6, 15.1R5-S2, 15.1R6; 15.1X49 prior to 15.1X49-D90; 15.1X53 prior to 15.1X53-D47; 16.1 prior to 16.1R4-S1, 16.1R5; 16.2 prior to 16.2R1-S3, 16.2R2;

Why it matters now

EPSS 0.01799 78th percentileScored 2026-11-07
Fix Fixed Junos OS (Juniper Networks): 12.1X46-D71, 12.3X48-D50, 14.1X53-D50 +2

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
JuniperJunos OS12.1X46 to before 12.1X46-D71; 12.3X48 to before 12.3X48-D50; 14.1 prior to 14.1R8-S5, 14.1R9; 14.1X53 to before 14.1X53-D50; 14.2 prior to 14.2R7-S9, 14.2R8; 15.1 prior to 15.1F2-S16, 15.1F5-S7, 15.1F6-S6, 15.1R5-S2, 15.1R6; 15.1X49 to before 15.1X49-D90; 15.1X53 to before 15.1X53-D47; 16.1 prior to 16.1R4-S1, 16.1R5; 16.2 prior to 16.2R1-S3, 16.2R212.1X46-D71, 12.3X48-D50, 14.1X53-D50, 15.1X49-D90, 15.1X53-D47Patch availableCNA
  • Junos OS VendorJuniper Affected 12.1X46 to before 12.1X46-D71; 12.3X48 to before 12.3X48-D50; 14.1 prior to 14.1R8-S5, 14.1R9; 14.1X53 to before 14.1X53-D50; 14.2 prior to 14.2R7-S9, 14.2R8; 15.1 prior to 15.1F2-S16, 15.1F5-S7, 15.1F6-S6, 15.1R5-S2, 15.1R6; 15.1X49 to before 15.1X49-D90; 15.1X53 to before 15.1X53-D47; 16.1 prior to 16.1R4-S1, 16.1R5; 16.2 prior to 16.2R1-S3, 16.2R2 Fixed in 12.1X46-D71, 12.3X48-D50, 14.1X53-D50, 15.1X49-D90, 15.1X53-D47 Patch available CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:o:juniper:junos:12.1x45:*:*:*:*:*:*:*12.1x45VulnerableJuniper
cpe:2.3:o:juniper:junos:12.3x48:*:*:*:*:*:*:*12.3x48VulnerableJuniper
cpe:2.3:o:juniper:junos:14.1:*:*:*:*:*:*:*14.1VulnerableJuniper
cpe:2.3:o:juniper:junos:14.1x53:*:*:*:*:*:*:*14.1x53VulnerableJuniper
cpe:2.3:o:juniper:junos:14.2:*:*:*:*:*:*:*14.2VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1:*:*:*:*:*:*:*15.1VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1x49:*:*:*:*:*:*:*15.1x49VulnerableJuniper
cpe:2.3:o:juniper:junos:15.1x53:*:*:*:*:*:*:*15.1x53VulnerableJuniper
cpe:2.3:o:juniper:junos:16.1:*:*:*:*:*:*:*16.1VulnerableJuniper
cpe:2.3:o:juniper:junos:16.2:*:*:*:*:*:*:*16.2VulnerableJuniper
  • cpe:2.3:o:juniper:junos:12.1x45:*:*:*:*:*:*:* Versions 12.1x45 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:12.3x48:*:*:*:*:*:*:* Versions 12.3x48 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:14.1:*:*:*:*:*:*:* Versions 14.1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:14.1x53:*:*:*:*:*:*:* Versions 14.1x53 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:14.2:*:*:*:*:*:*:* Versions 14.2 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1x49:*:*:*:*:*:*:* Versions 15.1x49 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:15.1x53:*:*:*:*:*:*:* Versions 15.1x53 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:16.1:*:*:*:*:*:*:* Versions 16.1 Vulnerable ·Juniper
  • cpe:2.3:o:juniper:junos:16.2:*:*:*:*:*:*:* Versions 16.2 Vulnerable ·Juniper

Remediation

  • Fix · CNA Junos OS (Juniper Networks) Fixed in 12.1X46-D71, 12.3X48-D50, 14.1X53-D50, 15.1X49-D90, 15.1X53-D47

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-10621
  2. 2026-10-03 Alias added: GHSA-qcrj-f7hq-vcc3

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

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