CVE-2022-22221

Local full device control via download command injection

Published Jul 20, 2022 · Updated Sep 17, 2024

Command injection in the Junos OS download manager on SRX and EX Series devices allows local users to gain full device control. The download manager fails to neutralize special elements supplied through affected request and show system download commands. A low-privileged authenticated account permitted to run either command family is required; successful exploitation grants full device control.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in the Junos OS download manager on SRX and EX Series devices allows local users to gain full device control. The download manager fails to neutralize special elements supplied through affected request and show system download commands. A low-privileged authenticated account permitted to run either command family is required; successful exploitation grants full device control.

The record

CVE
CVE-2022-22221
Published
Jul 20, 2022
Updated
Sep 17, 2024
Vendor
Juniper Networks
Product
Junos OS
Classifications
CWE-78, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=19.2 <19.2R1-S9, 19.2R3-S5
  2. Affected versionversion=19.3 <19.3R3-S6
  3. Affected versionversion=19.4 <19.4R3-S8
  4. Affected versionversion=20.1 <20.1R3-S4
  5. Affected versionversion=20.2 <20.2R3-S4
  6. Affected versionversion=20.3 <20.3R3-S3
  7. Affected versionversion=20.4 <20.4R3-S2, 20.4R3-S3
  8. Affected versionversion=21.1 <21.1R3-S1
  9. Affected versionversion=21.2 <21.2R2-S2, 21.2R3
  10. Affected versionversion=21.3 <21.3R2, 21.3R3
  11. Affected versionversion=21.4 <21.4R1-S1, 21.4R2
  12. Affected versionversion=unspecified <19.1R3-S9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Juniper Networks · Junos OSversion=19.2 <19.2R1-S9, 19.2R3-S5; version=19.3 <19.3R3-S6; version=19.4 <19.4R3-S8; version=20.1 <20.1R3-S4; version=20.2 <20.2R3-S4; version=20.3 <20.3R3-S3; version=20.4 <20.4R3-S2, 20.4R3-S3; version=21.1 <21.1R3-S1; version=21.2 <21.2R2-S2, 21.2R3; version=21.3 <21.3R2, 21.3R3; version=21.4 <21.4R1-S1, 21.4R2; version=unspecified <19.1R3-S9

Published CVSS scores

7.8Juniper NetworksCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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