HIGH🇬🇧 English

CVE-2025-30646

CVSS 7.1v4.0pub. 2025-04-09upd. 2026-01-26

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,  * from 21.4 before 21.4R3-S10,  * from 22.2 before 22.2R3-S6,  * from 22.4 before 22.4R3-S6,  * from 23.2 before 23.2R2-S3,  * from 23.4 before 23.4R2-S4,  * from 24.2 before 24.2R2;  Junos OS Evolved:  * All versions before 21.4R3-S10-EVO, * from 22.2-EVO before 22.2R3-S6-EVO,  * from 22.4-EVO before 22.4R3-S6-EVO,  * from 23.2-EVO before 23.2R2-S3-EVO,  * from 23.4-EVO before 23.4R2-S4-EVO,  * from 24.2-EVO before 24.2R2-EVO.

oryginał EN
CVSS Vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X
  • Juniper Junos

    OS
    Juniper
    21.221.422.222.423.223.424.2< 21.2
  • Juniper Junos Os Evolved

    OS
    Juniper
    21.422.222.423.223.424.2< 21.4
🔵
ZWERYFIKUJ U PRODUCENTA
Brak jednoznacznych danych o patchu. Sprawdź referencje od producenta.
Tagi
DoS
CWE
Referencje

Powiązane podatności

CVE-2023-36845CRITICAL9.8⚠ KEVten sam produkt

A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series and SR...

CVE-2026-21902CRITICAL9.3PL ✓ten sam produkt

RCE jako root w Juniper Junos OS Evolved — błędne uprawnienia do krytycznego zasobu

CVE-2024-21591CRITICAL9.8PL ✓ten sam produkt

Out-of-bounds Write w J-Web Juniper Junos OS — RCE z uprawnieniami root

CVE-2021-0254CRITICAL9.8ten sam produkt

A buffer size validation vulnerability in the overlayd service of Juniper Networks Junos OS may allow an unaut...

CVE-2021-0248CRITICAL10.0ten sam produkt

This issue is not applicable to NFX NextGen Software. On NFX Series devices the use of Hard-coded Credentials ...