CVE-2023-36846

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.935 · 100 %ileexploit · PoCDEEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 1 exploit · PoC

Likely / severe?

93.5% (100th) EPSS

CVSS 5.3 · medium

Is it mine?

30 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

added 2023-11-13remediate by 2023-11-17

required action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

EPSS · scored 2026-10-26

Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability

A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to user.php that doesn't require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of integrity for a certain part of the file system, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on SRX Series: * All versions prior to 20.4R3-S8; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S5; * 22.1 versions prior to 22.1R3-S3; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R2-S2, 22.3R3; * 22.4 versions prior to 22.4R2-S1, 22.4R3.

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5.3–9.8

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

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

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · sirt@juniper.net USexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Hsecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USprimaryCWE-434US

ATT&CK techniques

ATT&CK techniques this enables or maps to.

exploits (1)

Public proof-of-concept and weaponised exploit code.

Chocapikk/CVE-2023-36846Remote Code Execution on Junos OS CVE-2023-36846PoC · poc_in_github

affected products (30)

Products and version ranges known to be affected.

Juniper EX Seriesall versionscert_bundDEcpe:/h:juniper:ex:-
Juniper SRX Seriesall versionscert_bundDEcpe:/h:juniper:srx_service_gateways:-
Juniper Networks Junos OS0 → 20.4R3-S8enisa_euvdEU
Juniper Networks Junos OS21.1 → 21.1*enisa_euvdEU
Juniper Networks Junos OS21.2 → 21.2R3-S6enisa_euvdEU
Juniper Networks Junos OS21.3 → 21.3R3-S5enisa_euvdEU
Juniper Networks Junos OS21.4 → 21.4R3-S5enisa_euvdEU
Juniper Networks Junos OS22.1 → 22.1R3-S3enisa_euvdEU
Juniper Networks Junos OS22.2 → 22.2R3-S2enisa_euvdEU
Juniper Networks Junos OS22.3 → 22.3R2-S2, 22.3R3enisa_euvdEU
Juniper Networks Junos OS22.4 → 22.4R2-S1, 22.4R3enisa_euvdEU
Juniper Networks Inc. JunOS≤ 20.4R3-S8fstec_bduRU
Juniper Networks Inc. JunOS21.2 → 21.2R3-S6fstec_bduRU
Juniper Networks Inc. JunOS21.3 → 21.3R3-S5fstec_bduRU
Juniper Networks Inc. JunOS21.4 → 21.4R3-S5fstec_bduRU
Juniper Networks Inc. JunOS22.1 → 22.1R3-S3fstec_bduRU
Juniper Networks Inc. JunOS22.2 → 22.2R3-S2fstec_bduRU
Juniper Networks Inc. JunOS22.3 → 22.3R3fstec_bduRU
Juniper Networks Inc. JunOS22.3 → 22.3R2-S2fstec_bduRU
Juniper Networks Inc. JunOS22.4 → 22.4R2-S1fstec_bduRU

showing 20 of 30

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2092Juniper JUNOS: Mehrere Schwachstellen ermöglichen CodeausführungDeutsch2023-08-17csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Juniper JUNOS auf Geräten der EX- und SRX Serie ausnutzen, um beliebigen Programmcode auszuführen.

also known as (4)

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 2023-08-17modified 2026-06-17

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references (9)

External citations — patches, advisories, analysis.

scry

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