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CVE-2026-101971— Junos OS and Junos OS Evolved: An attacker causes routing protocol daemon crash when OSPFv3 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.

在 Juniper Networks 的 Junos OS 和 Junos OS Evolved 平台中，路由协议守护进程（rpd）存在一个“资源分配无限制或未限速”漏洞。未认证的邻近攻击者可通过在已启用的广播接口上发送 OSPFv3 消息，导致拒绝服务（DoS）以及堆内存损坏。

CVSS 6.5 · Medium EPSS 0.27% · P18

Affected Version Matrix 17

VendorProduct Version RangeStatus
Juniper Networks Junos OS < 23.2R2-S7.7 affected
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 < 23.2R2-S7.7-EVO affected
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
… +2 more rows
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I. Basic Information for CVE-2026-101971

Vulnerability Information
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Vulnerability Title
Junos OS and Junos OS Evolved: An attacker causes routing protocol daemon crash when OSPFv3 is enabled
Source: CVE Program / CVE List V5
Vulnerability Description
An Allocation of Resources Without Limits or Throttling vulnerability in rpd, the routing protocol daemon, of Juniper Networks Junos OS and Junos OS Evolved platforms allows an unauthenticated adjacent attacker to cause a denial of service and heap memory corruption via OSPFv3 messages on an enabled broadcast interface.
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
不加限制或调节的资源分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Juniper Networks Junos OS 0 ~ 23.2R2-S7.7 -
Juniper Networks Junos OS Evolved 0 ~ 23.2R2-S7.7-EVO -

II. Public POCs for CVE-2026-101971

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III. Intelligence Information for CVE-2026-101971

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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-770

V. Comments for CVE-2026-101971

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