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CVE-2026-101988— Junos OS and Junos OS Evolved: An unauthenticated adjacent attacker causes an rpd crash when LDP is enabled

Quick assessment

Affected
Juniper Networks Junos OS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service via LDP messages received over an operational LDP session.

CVSS 6.5 · Medium

Affected Version Matrix 15

VendorProduct Version RangeStatus
Juniper Networks Junos OS 23.4< 23.4R2-S8.13 affected
24.2< 24.2R2-S5.5 affected
24.4< 24.4R2-S5 affected
25.2< 25.2R2-S2 affected
25.4< 25.4R1-S3 affected
26.2< 26.2R1-S2 affected
Juniper Networks Junos OS Evolved 23.4< 23.4R2-S8.11-EVO affected
24.2< 24.2R2-S5.6-EVO affected
24.4< 24.4R2-S5-EVO affected
25.2< 25.2R2-S2-EVO affected
25.4< 25.4R1-S3-EVO affected
26.2< 26.2R1-S2-EVO affected
23.4X100 affected
25.2X100< 25.2X100-D35-EVO affected
… +1 more rows
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I. Basic Information for CVE-2026-101988

Vulnerability Information

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Vulnerability Title
Junos OS and Junos OS Evolved: An unauthenticated adjacent attacker causes an rpd crash when LDP is enabled
Source: CVE Program / CVE List V5
Vulnerability Description
A NULL Pointer Dereference vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a denial of service via LDP messages received over an operational LDP session.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Juniper Networks Junos OS 23.4 ~ 23.4R2-S8.13 -
Juniper Networks Junos OS Evolved 23.4 ~ 23.4R2-S8.11-EVO -

II. Public POCs for CVE-2026-101988

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III. Intelligence Information for CVE-2026-101988

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Same Patch Batch · Juniper Networks · 2026-10-14 · 153 CVEs total

CVE-2026-101950 9.8 CRITICAL Junos OS: SRX Series: Malformed IPv4 packets cause packet-forwarding process crash when Se
CVE-2026-101990 9.8 CRITICAL Junos OS and Junos OS Evolved: A BGP peer causes an rpd crash when flow-spec routes are re
CVE-2026-33789 9.8 CRITICAL Junos OS and Junos OS Evolved: With BGP Monitoring Protocol is enabled, receipt of a speci
CVE-2026-33792 9.8 CRITICAL Junos OS: SRX Series: An attacker causes remote code execution and denial of service when
CVE-2026-102182 9.8 CRITICAL Junos OS: MX Series: Certificate-based IKE packets cause root-level code execution
CVE-2026-33796 9.8 CRITICAL Junos OS and Junos OS Evolved: An attacker causes remote root command execution when BMP r
CVE-2026-101956 9.8 CRITICAL Junos OS: Unauthorized root command execution when J-Web is enabled
CVE-2026-101980 9.8 CRITICAL Junos OS: Malformed Extended Echo requests cause a Routing Engine reboot when Extended Ech
CVE-2026-101986 9.8 CRITICAL Junos OS and Junos OS Evolved: J-Web permits pre-authentication CGI execution
CVE-2026-102178 9.8 CRITICAL Junos OS and Junos OS Evolved: When BGP update-threading is enabled a specifically malform
CVE-2026-101982 9.8 CRITICAL Junos OS and Junos OS Evolved: A EVPN peer causes an rpd crash or root-level compromise wh
CVE-2026-101983 9.8 CRITICAL Junos OS and Junos OS Evolved: An attacker causes remote code execution when J-Web virtual
CVE-2026-101954 9.8 CRITICAL Junos OS and Junos OS Evolved: Unauthenticated network access causes full device takeover
CVE-2026-102175 9.8 CRITICAL Junos OS and Junos OS Evolved: An attacker causes remote code execution or denial of servi
CVE-2026-102031 9.8 CRITICAL Junos OS Evolved: A low-privileged TACACS+ user causes root command execution when authori
CVE-2026-102050 8.8 HIGH Junos OS and Junos OS Evolved: An adjacent attacker causes Layer 2 control-plane denial of
CVE-2026-102059 8.8 HIGH Junos OS and Junos OS Evolved: EX Series, SRX Series, QFX Series: A rogue DHCP server caus
CVE-2026-102049 8.8 HIGH Junos OS and Junos OS Evolved: An attacker causes l2cpd crash or root code execution when
CVE-2026-102052 8.8 HIGH Junos OS and Junos OS Evolved: An attacker causes jdhcpd to crash when the DHCPv4 local-cl
CVE-2026-102176 8.8 HIGH Junos OS: Specific packets cause SDK service crash or Routing Engine compromise when the S

Showing top 20 of 153 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-476

V. Comments for CVE-2026-101988

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