CVE-2017-10621

Junos OS: Denial of service vulnerability in telnetd

Severity Score

5.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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;

Una vulnerabilidad de denegación de servicio (DoS) en el servicio telnetd en Juniper Networks Junos OS permite que atacantes remotos no autenticados provoquen una denegación de servicio (DoS). Las distribuciones afectadas Junos OS son: 12.1X46 anteriores a 12.1X46-D71; 12.3X48 anteriores a 12.3X48-D50; 14.1 anteriores a 14.1R8-S5, 14.1R9; 14.1X53 anteriores a 14.1X53-D50; 14.2 anteriores a 14.2R7-S9, 14.2R8; 15.1 anteriores a 15.1F2-S16, 15.1F5-S7, 15.1F6-S6, 15.1R5-S2, 15.1R6; 15.1X49 anteriores a 15.1X49-D90; 15.1X53 anteriores a 15.1X53-D47; 16.1 anteriores a 16.1R4-S1, 16.1R5; 16.2 anteriores a 16.2R1-S3, 16.2R2;

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-06-28 CVE Reserved
2017-10-13 CVE Published
2024-09-16 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://kb.juniper.net/JSA10817	2019-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				12.1x45 Search vendor "Juniper" for product "Junos" and version "12.1x45"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				12.3x48 Search vendor "Juniper" for product "Junos" and version "12.3x48"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				14.1 Search vendor "Juniper" for product "Junos" and version "14.1"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				14.1x53 Search vendor "Juniper" for product "Junos" and version "14.1x53"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				14.2 Search vendor "Juniper" for product "Junos" and version "14.2"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				15.1 Search vendor "Juniper" for product "Junos" and version "15.1"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				15.1x49 Search vendor "Juniper" for product "Junos" and version "15.1x49"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				15.1x53 Search vendor "Juniper" for product "Junos" and version "15.1x53"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				16.1 Search vendor "Juniper" for product "Junos" and version "16.1"		-		Affected
Juniper Search vendor "Juniper"		Junos Search vendor "Juniper" for product "Junos"				16.2 Search vendor "Juniper" for product "Junos" and version "16.2"		-		Affected