CVE-2025-52949

CWE-130 CWE-120 — Classic Buffer Overflow5 documents5 sources

Severity

7.1HIGH

EPSS

0.1%

top 82.62%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Juniper Networks Junos OS Juniper Networks Junos OS Evolved Juniper Junos +1 more

Timeline

PublishedJul 11

Description

An Improper Handling of Length Parameter Inconsistency vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a logically adjacent BGP peer sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. Only systems configured for Ethernet Virtual Private Networking (EVPN) signaling…

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

Affected Packages4 packages

▶CVEListV5juniper_networks/junos_os_evolved22.4-EVO — 22.4R3-S7-EVO+5

▶NVDjuniper/junos_os_evolved< 22.2+6

▶CVEListV5juniper_networks/junos_os22.2 — 22.2R3-S7+6

▶NVDjuniper/junos< 21.4+7

🔴Vulnerability Details

CVEList

Junos OS and Junos OS Evolved: In an EVPN environment, receipt of specifically malformed BGP update causes RPD crash↗2025-07-11

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GHSA

GHSA-fx8c-8vrh-7hg5: An Improper Handling of Length Parameter Inconsistency vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Ev↗2025-07-11

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📋Vendor Advisories

Juniper

CVE-2025-52949: An Improper Handling of Length Parameter Inconsistency vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Ev↗2025-07-11

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Microsoft

iptraf-ng 1.2.1 has a stack-based buffer overflow. In src/ifaces.c, the strcpy function consistently fails to control the size, and it is consequently possible to overflow memory on the stack.↗2024-12-10

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