CVE-2025-21600 — Out-of-bounds Read in Networks Junos OS

CWE-125 — Out-of-bounds Read4 documents4 sources
Severity
7.1HIGHNVD
CNA8.7
EPSS
0.1%
top 78.18%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Juniper Networks Junos OSJuniper Networks Junos OS EvolvedJuniper Junos+1 more
Timeline
PublishedJan 9

Description

An Out-of-Bounds Read vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, 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. This issue only affects systems configured in either of two ways: * systems with BGP trac…

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_evolved21.4-EVO — 21.4R3-S9-EVO+6
▶NVDjuniper/junos_os_evolved7 versions+6
▶CVEListV5juniper_networks/junos_os21.4 — 21.4R3-S9+6
▶NVDjuniper/junos7 versions+6

🔴Vulnerability Details

2
CVEList
Junos OS and Junos OS Evolved: With certain BGP options enabled, receipt of specifically malformed BGP update causes RPD crash↗2025-01-09
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GHSA
GHSA-p52f-fg64-jqxw: An Out-of-Bounds Read vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated↗2025-01-09
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📋Vendor Advisories

1
Juniper
CVE-2025-21600: An Out-of-Bounds Read vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticat↗2025-01-09
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CVE-2025-21600 — Out-of-bounds Read | cvebase