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High severity · published Oct 18, 2022
CVE-2022-22247
Junos OS Evolved: Kernel processing of unvalidated TCP segments could lead to a Denial of Service (DoS)
7.5
CVSS
0.7%
EPSS
No
On KEV
Description
An Improper Input Validation vulnerability in ingress TCP segment processing of Juniper Networks Junos OS Evolved allows a network-based unauthenticated attacker to send a crafted TCP segment to the device, triggering a kernel panic, leading to a Denial of Service (DoS) condition. Continued receipt and processing of this TCP segment could create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS Evolved: 21.3 versions prior to 21.3R3-EVO; 21.4 versions prior to 21.4R2-EVO; 22.1 versions prior to 22.1R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 21.3R1-EVO.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Junos OS Evolved · Juniper Networks
21.3-EVO before 21.3R3-EVO; 21.4-EVO before 21.4R2-EVO; 22.1-EVO before 22.1R2-EVO · source: vendor, NVD
Affected product
JO
Junos OS Evolved
Juniper Networks
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-22247
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-22247
Vendor Advisory
https://kb.juniper.net/JSA69904
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