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CVE-2023-28978

Junos OS Evolved: Read access to some confidential user information is possible

MEDIUM
5.3
CVSS Score
Published: April 17, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:49 AM UTC
2 products affected across 2 vendorsJunos OS EvolvedJunos OS Evolved

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

An Insecure Default Initialization of Resource vulnerability in Juniper Networks Junos OS Evolved allows an unauthenticated, network based attacker to read certain confidential information. In the default configuration it is possible to read confidential information about locally configured (administrative) users of the affected system. This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S7-EVO on pending commit???; 21.1-EVO versions prior to 21.1R3-S4-EVO on awaiting build; 21.4-EVO versions prior to 21.4R3-S1-EVO; 22.2-EVO versions prior to 22.2R3-EVO; 21.2-EVO versions prior to 21.2R3-S5-EVO on pending commit???; 21.3-EVO version 21.3R1-EVO and later versions; 22.1-EVO version 22.1R1-EVO and later versions; 22.2-EVO versions prior to 22.2R2-S1-EVO.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Junos OS Evolved· Juniper
95%
v < 20.420.420.4 r120.4 r1-s120.4 r1-s220.4 r220.4 r2-s120.4 r2-s220.4 r2-s320.4 r320.4 r3-s120.4 r3-s220.4 r3-s320.4 r3-s420.4 r3-s520.4 r3-s621.121.1 r121.1 r1-s121.1 r221.1 r321.1 r3-s121.1 r3-s221.1 r3-s321.221.2 r121.2 r1-s121.2 r1-s221.2 r221.2 r2-s121.2 r2-s221.2 r321.2 r3-s121.2 r3-s221.2 r3-s321.2 r3-s421.3 r121.3 r1-s121.3 r221.3 r2-s121.3 r2-s221.3 r321.3 r3-s121.3 r3-s221.3 r3-s321.421.4 r121.4 r1-s121.4 r1-s221.4 r221.4 r2-s121.4 r2-s221.4 r322.1 r122.1 r1-s122.1 r1-s222.1 r222.1 r2-s122.1 r322.2 r122.2 r1-s122.2 r222.2 r2-s1
Affected range stops below 20.4, so it looks safe — our inference, not a vendor statement
Junos OS Evolved· Juniper Networks
60%
21.3R1-EVO ≤ v < 21.3-EVO*21.4-EVO ≤ v < 21.4R3-S1-EVO22.1R1-EVO ≤ v < 22.1-EVO*22.2-EVO ≤ v < 22.2R2-S1-EVO21.3R1-EVO21.4-EVO22.1R1-EVO22.2-EVO
Affected range stops below 21.3-EVO*, so it looks safe — our inference, not a vendor statement
Affected range stops below 21.4R3-S1-EVO, so it looks safe — our inference, not a vendor statement
Affected range stops below 22.1-EVO*, so it looks safe — our inference, not a vendor statement
Affected range stops below 22.2R2-S1-EVO, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://supportportal.juniper.net/JSA70603

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMjuniper
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1188

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