Junos OS: IPv6 OAM SRv6 network-enabled devices are vulnerable to Denial of Service (DoS) due to RPD memory leak upon receipt of specific a IPv6 packet

published 2022-10-18 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-27375

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 55%
public exploits: 0; none known

An Improper Validation of Specified Type of Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS allows an attacker to cause an RPD memory leak leading to a Denial of Service (DoS). This memory leak only occurs when the attacker's packets are destined to any configured IPv6 address on the device. This issue affects: Juniper Networks Junos OS 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R3-S1; 21.3 versions prior to 21.3R3; 21.4 versions prior to 21.4R2; 22.1 versions prior to 22.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 21.1R1.

Patch / fix

fixed in 1

Juniper Networks Junos OS 21.1R3-S2, 21.2R3-S1, 21.3R3, 21.4R2, 22.1R2

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 17 mo ago (2025-05-12)

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Juniper Networks Junos OS

Classification

Weakness

CWE-1287 Improper Validation of Specified Type of Input
CWE-20 Improper Input Validation

References

kb.juniper.net /JSA69880
vendor-advisory

Sources

CVE List CVE-2022-22228
NVD CVE-2022-22228

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Summary