CVE-2023-28984

mediumpriority · track · 0EPSS 0.002 · 11 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.21% (11th) EPSS

CVSS 5.3 · medium

Is it mine?

38 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A Use After Free vulnerability in the Layer 2 Address Learning Manager (l2alm) of Juniper Networks Junos OS on QFX Series allows an adjacent attacker to cause the Packet Forwarding Engine to crash and restart, leading to a Denial of Service (DoS). The PFE may crash when a lot of MAC learning and aging happens, but due to a Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization) that is outside the attackers direct control. This issue affects: Juniper Networks Junos OS versions prior to 19.4R3-S10 on QFX Series; 20.2 versions prior to 20.2R3-S7 on QFX Series; 20.3 versions prior to 20.3R3-S6 on QFX Series; 20.4 versions prior to 20.4R3-S5 on QFX Series; 21.1 versions prior to 21.1R3-S4 on QFX Series; 21.2 versions prior to 21.2R3-S3 on QFX Series; 21.3 versions prior to 21.3R3-S3 on QFX Series; 21.4 versions prior to 21.4R3 on QFX Series; 22.1 versions prior to 22.1R3 on QFX Series; 22.2 versions prior to 22.2R2 on QFX Series.

cvss

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

5.3

010

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

v3.15.3mediumAV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.15.3mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · sirt@juniper.net USexploitability 1.6 · impact 3.6

v3.14.9mediumCVSS:3.1/AV:A/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-362USprimaryCWE-416USprimaryCWE-362USCWE-416US

affected products (38)

Products and version ranges known to be affected.

Juniper JUNOSall versionscert_bundDEcpe:/o:juniper:junos:-
Juniper JUNOS Evolvedall versionscert_bundDEcpe:/o:juniper:junos:evolved
Juniper MX Seriesall versionscert_bundDEcpe:/h:juniper:mx:-
Juniper QFX Seriesall versionscert_bundDEcpe:/h:juniper:qfx:-
Juniper QFX Series QFX10000all versionscert_bundDEcpe:/h:juniper:qfx:qfx10000
Juniper QFX Series QFX10002all versionscert_bundDEcpe:/h:juniper:qfx:qfx10002
Juniper SRX Seriesall versionscert_bundDEcpe:/h:juniper:srx_service_gateways:-
Juniper Networks Junos OS20.2 → 20.2R3-S7enisa_euvdEU
Juniper Networks Junos OS20.3 → 20.3R3-S6enisa_euvdEU
Juniper Networks Junos OS20.4 → 20.4R3-S5enisa_euvdEU
Juniper Networks Junos OS21.1 → 21.1R3-S4enisa_euvdEU
Juniper Networks Junos OS21.2 → 21.2R3-S3enisa_euvdEU
Juniper Networks Junos OS21.3 → 21.3R3-S3enisa_euvdEU
Juniper Networks Junos OS21.4 → 21.4R3enisa_euvdEU
Juniper Networks Junos OS22.1 → 22.1R3enisa_euvdEU
Juniper Networks Junos OS22.2 → 22.2R2enisa_euvdEU
Juniper Networks Junos OSunspecified → 19.4R3-S10enisa_euvdEU
Juniper Networks Inc. JunOS≤ 19.4R3-S10fstec_bduRU
Juniper Networks Inc. JunOS20.2 → 20.2R3-S7fstec_bduRU
Juniper Networks Inc. JunOS20.3 → 20.3R3-S6fstec_bduRU

showing 20 of 38

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-0951Juniper Produkte: Mehrere SchwachstellenDeutsch2023-04-12csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Juniper JUNOS, Juniper QFX Series, Juniper SRX Series und Juniper MX Series ausnutzen, um beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, einen Denial-of-Service-Zustand zu verursachen und Daten zu manipulieren.

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 CVE.org MITRE

published 2023-04-17modified 2026-06-17

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+15757 more

references (4)

External citations — patches, advisories, analysis.

scry

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