CVE-2023-22402

mediumpriority · track · 0EPSS 0.005 · 45 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.53% (45th) EPSS

CVSS 5.9 · medium

Is it mine?

14 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-28

A Use After Free vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). In a Non Stop Routing (NSR) scenario, an unexpected kernel restart might be observed if "bgp auto-discovery" is enabled and if there is a BGP neighbor flap of auto-discovery sessions for any reason. This is a race condition which is outside of an attackers direct control and it depends on system internal timing whether this issue occurs. 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; 22.2 versions prior to 22.2R1-S1-EVO, 22.2R2-EVO.

cvss

Technical severity, 0–10. One row per scoring source.

5.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.9mediumAV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · sirt@juniper.net USexploitability 2.2 · impact 3.6

v3.15.4mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-416USprimaryCWE-416US

affected products (14)

Products and version ranges known to be affected.

Juniper JUNOS Evolvedall versionscert_bundDEcpe:/o:juniper:junos:evolved
Juniper Networks Junos OS Evolved21.3 → 21.3R3-EVOenisa_euvdEU
Juniper Networks Junos OS Evolved21.4 → 21.4R2-EVOenisa_euvdEU
Juniper Networks Junos OS Evolved22.1 → 22.1R2-EVOenisa_euvdEU
Juniper Networks Junos OS Evolved22.2 → 22.2R1-S1-EVO, 22.2R2-EVOenisa_euvdEU
Juniper Networks Inc. Junos OS Evolved21.3-EVO → 21.3R3-EVOfstec_bduRU
Juniper Networks Inc. Junos OS Evolved21.4 → 21.4R2-EVOfstec_bduRU
Juniper Networks Inc. Junos OS Evolved22.1-EVO → 22.1R2-EVOfstec_bduRU
Juniper Networks Inc. Junos OS Evolved22.2 → 22.2R2-EVOfstec_bduRU
Juniper Networks Inc. Junos OS Evolved22.2-EVO → 22.2R1-S1-EVOfstec_bduRU
juniper junos os evolved= 21.3nvdUScpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*
juniper junos os evolved= 21.4nvdUScpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*
juniper junos os evolved= 22.1nvdUScpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*
juniper junos os evolved= 22.2nvdUScpe:2.3:o:juniper:junos_os_evolved:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0071Juniper JUNOS Evolved: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2023-01-11csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS Evolved ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2023-01-13modified 2026-06-17

related (12,286)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-109619US	high8.1OT critical	100.0% (100th)	KEV	2026-10-21
PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The g…
CVE-2026-109618US	critical9.8OT critical	100.0% (100th)	KEV	2026-10-21
PHP uses longjmp() for out-of-memory (OOM) errors to exit the current context and abort handling of the request. Some contexts may not properly account for this scenario and leave…
CVE-2026-68820US	—OT critical	0.33% (26th)	KEV	2026-08-11
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
CVE-2026-5281US	—OT critical	13.5% (96th)	KEV	2026-04-01
Use after free in Dawn in Google Chrome prior to 146.0.7680.178 allowed a remote attacker who had compromised the renderer process to execute arbitrary code via a crafted HTML page…
CVE-2026-2441US	high8.8OT critical	55.0% (99th)	KEV	2026-02-13
Use after free in CSS in Google Chrome prior to 145.0.7632.75 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security sever…

+12281 more

references (5)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan