CVE-2026-21911: Incorrect Calculation

An Incorrect Calculation vulnerability in the Layer 2 Control Protocol Daemon l2cpd of Juniper Networks Junos OS Evolved allows an unauthenticated network-adjacent attacker flapping the management interface to cause the learning of new MACs over label-switched interfaces LSI to stop while...

EUVD-2024-28301

Malicious code in bioql PyPI...

EUVD-2025-10525

Malicious code in bioql PyPI...

CVE-2025-30646

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...

CVE-2025-30646 Junos OS and Junos OS Evolved: Receipt of a malformed LLDP TLV results in l2cpd crash

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...

CVE-2025-30646

CVE-2025-30646 affects Junos OS and Junos OS Evolved. A Signed to Unsigned Conversion Error in the Layer 2 Control Protocol daemon (l2cpd) allows an unauthenticated adjacent attacker to cause the l2cpd process to crash and restart by sending a specially formed LLDP TLV, yielding a Denial of Servi...

CVE-2025-30646 Junos OS and Junos OS Evolved: Receipt of a malformed LLDP TLV results in l2cpd crash

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...

CVE-2025-30646: Signed to Unsigned Conversion Error

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...

CVE-2024-30380

An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a Denial of Service DoS, which causes the l2cpd process to crash by sending a specific TLV. The l2cpd process is responsible for laye...

CVE-2024-30380 Junos OS and Junos OS Evolved: l2cpd crash upon receipt of a specific TLV

An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a Denial of Service DoS, which causes the l2cpd process to crash by sending a specific TLV. The l2cpd process is responsible for laye...

CVE-2024-30380 Junos OS and Junos OS Evolved: l2cpd crash upon receipt of a specific TLV

An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a Denial of Service DoS, which causes the l2cpd process to crash by sending a specific TLV. The l2cpd process is responsible for laye...

CVE-2024-30380

CVE-2024-30380 affects Junos OS and Junos OS Evolved. An adjacent, unauthenticated attacker can trigger a DoS by sending a specific TLV that crashes the l2cpd process, reinitializing STP/RSTP/MSTP/VSTP, MVRP and ERP. Affected versions are: Junos OS: before 20.4R3-S9; 21.2 before 21.2R3-S7; 21.3 b...

CVE-2024-30380: Improper Handling of Exceptional Conditions

An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a Denial of Service DoS, which causes the l2cpd process to crash by sending a specific TLV. The l2cpd process is responsible for laye...

CVE-2024-21618 Junos OS and Junos OS Evolved: When LLDP is enabled and a malformed LLDP packet is received, l2cpd crashes

An Access of Memory Location After End of Buffer vulnerability in the Layer-2 Control Protocols Daemon l2cpd of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause Denial of Service DoS. On all Junos OS and Junos OS Evolved platforms, when LLDP is...

CVE-2024-21618 Junos OS and Junos OS Evolved: When LLDP is enabled and a malformed LLDP packet is received, l2cpd crashes

An Access of Memory Location After End of Buffer vulnerability in the Layer-2 Control Protocols Daemon l2cpd of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause Denial of Service DoS. On all Junos OS and Junos OS Evolved platforms, when LLDP is...

Juniper Networks Junos OS 安全漏洞

Juniper Networks Junos OS is a Juniper Networks USA network operating system dedicated to the company's hardware devices. The operating system provides a secure programming interface and the Junos SDK. Juniper Networks Junos OS versions 21.4 through 21.4R3-S4, 22.1 through 22.1R3-S4, 22.2 through...

CVE-2024-21618: Access of Memory Location After End of Buffer

An Access of Memory Location After End of Buffer vulnerability in the Layer-2 Control Protocols Daemon l2cpd of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause Denial of Service DoS. On all Junos OS and Junos OS Evolved platforms, when LLDP is...

Juniper Junos OS Vulnerability (JSA79171)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA79171 advisory. - An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a Denia...

PT-2024-5063 · Juniper Networks · Junos Evolved +1

Name of the Vulnerable Software and Affected Versions: Junos OS versions prior to 20.4R3-S9 Junos OS versions from 21.2 prior to 21.2R3-S7 Junos OS versions from 21.3 prior to 21.3R3-S5 Junos OS versions from 21.4 prior to 21.4R3-S4 Junos OS versions from 22.1 prior to 22.1R3-S4 Junos OS versions...

CVE-2023-36839 Junos OS and Junos OS Evolved: An l2cpd crash will occur when specific LLDP packets are received

An Improper Validation of Specified Quantity in Input vulnerability in the Layer-2 control protocols daemon l2cpd of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker who sends specific LLDP packets to cause a Denial of ServiceDoS. This issue occurs when...