What is CVE-2022-22197?

CVE-2022-22197 is a high-severity vulnerability in Juniper Junos, classified under Operation on a Resource after Expiration or Release. CVSS score: 7.5/10. Published 2022-04-14.

How severe is CVE-2022-22197?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-22197 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Juniper Junos

CVE-2022-22197

An Operation on a Resource after Expiration or Release vulnerability in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker with an established BGP session to cause a Denial of Service (DoS). This issue occurs when proxy-generate route-target filtering is enabled, and certain proxy-route add and delete events are happening. This issue affects: Juniper Networks Junos OS All versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S8, 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S1; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R1-S2, 20.3R2. Juniper Networks Junos OS Evolved All versions prior to 20.1R3-EVO; 20.2 versions prior to 20.2R3-EVO; 20.3 versions prior to 20.3R2-EVO.

EPSS: 0.011 (62.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Juniper Junos — versions 17.3, 17.4, 18.3
Juniper Junos_os_evolved — versions 20.1, 20.2, 20.3
Juniper Networks Junos Os — versions unspecified, 17.4, 18.3
Juniper Networks Junos Os Evolved — versions unspecified, 20.2, 20.3

Weakness classification (CWE)

CWE-672 — Operation on a Resource after Expiration or Release

Public proof-of-concept exploits

karimhabush/cyberowl

References

sirt@juniper.net (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2022-22197?: CVE-2022-22197 is a high-severity vulnerability in Juniper Junos, classified under Operation on a Resource after Expiration or Release. CVSS score: 7.5/10. Published 2022-04-14.
How severe is CVE-2022-22197?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-22197 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.