Executive Summary



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Informations
Name CVE-2025-30646 First vendor Publication 2025-04-09
Vendor Cve Last vendor Modification 2025-04-09

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Adjacent Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

A Signed to Unsigned Conversion Error vulnerability in the Layer 2 Control Protocol daemon (l2cpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated adjacent attacker sending a specifically malformed LLDP TLV to cause the l2cpd process to crash and restart, causing a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.

When an LLDP telemetry subscription is active, receipt of a specifically malformed LLDP TLV causes the l2cpd process to crash and restart.

This issue affects:

Junos OS:

* All versions before 21.2R3-S9,Â
* from 21.4 before 21.4R3-S10,Â
* from 22.2 before 22.2R3-S6,Â
* from 22.4 before 22.4R3-S6,Â
* from 23.2 before 23.2R2-S3,Â
* from 23.4 before 23.4R2-S4,Â
* from 24.2 before 24.2R2;Â

Junos OS Evolved:Â

* All versions before 21.4R3-S10-EVO,
* from 22.2-EVO before 22.2R3-S6-EVO,Â
* from 22.4-EVO before 22.4R3-S6-EVO,Â
* from 23.2-EVO before 23.2R2-S3-EVO,Â
* from 23.4-EVO before 23.4R2-S4-EVO,Â
* from 24.2-EVO before 24.2R2-EVO.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-30646

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-195 Signed to Unsigned Conversion Error

Sources (Detail)

https://supportportal.juniper.net/JSA96456
Source Url

Alert History

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0
Date Informations
2025-05-27 02:56:32
  • First insertion