CVE-2026-33779

mediumpriority · track · 0EPSS 0.001 · 2 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.12% (2nd) EPSS

CVSS 6.5 · medium

Is it mine?

18 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

An Improper Following of a Certificate's Chain of Trust vulnerability in J-Web of Juniper Networks Junos OS on SRX Series allows a PITM to intercept the communication of the device and get access to confidential information and potentially modify it. When an SRX device is provisioned to connect to Security Director (SD) cloud, it doesn't perform sufficient verification of the received server certificate. This allows a PITM to intercept the communication between the SRX and SD cloud and access credentials and other sensitive information. This issue affects Junos OS: * all versions before 22.4R3-S9, * 23.2 versions before 23.2R2-S6, * 23.4 versions before 23.4R2-S7, * 24.2 versions before 24.2R2-S3, * 24.4 versions before 24.4R2-S2, * 25.2 versions before 25.2R1-S2, 25.2R2.

cvss

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

8.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.8–8.3

v3.16.5mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:Nsecondary · sirt@juniper.net USexploitability 2.2 · impact 4.2

v4.08.3highCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/RE:Msecondary · ENISA EU

v4.08.3highCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:M/U:Xsecondary · sirt@juniper.net US

v4.04.8mediumCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:M/U:Xsecondary · 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-296US

affected products (18)

Products and version ranges known to be affected.

Juniper JUNOS OSall versionscert_bundDEcpe:/o:juniper:junos:os
Juniper JUNOS OS Evolvedall versionscert_bundDEcpe:/o:juniper:junos:os_evolved
Juniper MX Seriesall versionscert_bundDEcpe:/h:juniper:mx:-
Juniper QFX Seriesall versionscert_bundDEcpe:/h:juniper:qfx:os_evolved
Juniper SRX Seriesall versionscert_bundDEcpe:/h:juniper:srx_service_gateways:-
Juniper Networks Junos OS0 → 22.4R3-S9enisa_euvdEU
Juniper Networks Junos OS23.2 → 23.2R2-S6enisa_euvdEU
Juniper Networks Junos OS23.4 → 23.4R2-S7enisa_euvdEU
Juniper Networks Junos OS24.2 → 24.2R2-S3enisa_euvdEU
Juniper Networks Junos OS24.4 → 24.4R2-S2enisa_euvdEU
Juniper Networks Junos OS25.2 → 25.2R1-S2, 25.2R2enisa_euvdEU
juniper junos< 22.4nvdUScpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
juniper junos= 22.4nvdUScpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
juniper junos= 23.2nvdUScpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
juniper junos= 23.4nvdUScpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
juniper junos= 24.2nvdUScpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
juniper junos= 24.4nvdUScpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
juniper junos= 25.2nvdUScpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1022Juniper Patchday April 2026: Mehrere SchwachstellenDeutsch2026-04-08csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Juniper Apstra, Junos OS, Junos OS Evolved und Junos Space ausnutzen, um erweiterte Berechtigungen – sogar Root-Rechte – zu erlangen, beliebigen Code auszuführen – auch mit erweiterten Berechtigungen –, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Cross-Site-Scripting-Angriffe durchzuführen oder Daten zu manipulieren.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2026-04-09modified 2026-10-26

references (3)

External citations — patches, advisories, analysis.

scry

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