Vulnerability Database

346,508

Total vulnerabilities in the database

CVE-2022-22234 — juniper / junos

Improper Preservation of Consistency Between Independent Representations of Shared State

An Improper Preservation of Consistency Between Independent Representations of Shared State vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a locally authenticated attacker with low privileges to cause a Denial of Service (DoS). If the device is very busy for example while executing a series of show commands on the CLI one or more SFPs might not be detected anymore. The system then changes its state to "unplugged" which is leading to traffic impact and at least a partial DoS. Once the system is less busy the port states return to their actual value. Indicators of compromise are log messages about unplugged SFPs and corresponding syspld messages without any physical or environmental cause. These can be checked by issuing the following commands: user@device# show log messages | match unplugged %PFE-6: fpc0 sfp-0/1/2 SFP unplugged %PFE-6: fpc0 sfp-0/1/3 SFP unplugged The following log messages will also be seen when this issue happens: fpc0 Error tvp_drv_syspld_read: syspld read failed for address <address> fpc0 Error[-1]:tvp_optics_presence_get - Syspld read failed for port <pic/port> fpc0 optics pres failed(-1) for pic <pic> port <port> fpc0 tvp_drv_syspld_read: i2c access retry count 200 This issue affects Juniper Networks Junos OS on EX2300 Series, EX3400 Series: All versions prior to 18.4R3-S11; 19.1 versions prior to 19.1R3-S9; 19.2 versions prior to 19.2R1-S9, 19.2R3-S5; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R2-S7, 19.4R3-S8; 20.1 versions prior to 20.1R3-S4; 20.2 versions prior to 20.2R3-S4; 20.3 versions prior to 20.3R3-S4; 20.4 versions prior to 20.4R3-S3; 21.1 versions prior to 21.1R3-S1; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2; 21.4 versions prior to 21.4R2.

  • Published: Oct 18, 2022
  • Updated: Nov 16, 2025
  • CVE: CVE-2022-22234
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.5
  • AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Software From Fixed in
juniper / junos - 18.4
juniper / junos 18.4-r3-s10 18.4-r3-s10.x
juniper / junos 18.4-r3-s9 18.4-r3-s9.x
juniper / junos 18.4-r3-s7 18.4-r3-s7.x
juniper / junos 18.4-r2-s7 18.4-r2-s7.x
juniper / junos 18.4-r2-s8 18.4-r2-s8.x
juniper / junos 18.4-r3-s8 18.4-r3-s8.x
juniper / junos 18.4-r1 18.4-r1.x
juniper / junos 18.4 18.4.x
juniper / junos 18.4-r1-s1 18.4-r1-s1.x
juniper / junos 18.4-r1-s3 18.4-r1-s3.x
juniper / junos 18.4-r1-s4 18.4-r1-s4.x
juniper / junos 18.4-r1-s2 18.4-r1-s2.x
juniper / junos 18.4-r2 18.4-r2.x
juniper / junos 18.4-r1-s5 18.4-r1-s5.x
juniper / junos 18.4-r2-s1 18.4-r2-s1.x
juniper / junos 18.4-r2-s2 18.4-r2-s2.x
juniper / junos 18.4-r3 18.4-r3.x
juniper / junos 18.4-r2-s3 18.4-r2-s3.x
juniper / junos 18.4-r1-s6 18.4-r1-s6.x
juniper / junos 18.4-r3-s2 18.4-r3-s2.x
juniper / junos 18.4-r3-s1 18.4-r3-s1.x
juniper / junos 18.4-r2-s4 18.4-r2-s4.x
juniper / junos 18.4-r3-s3 18.4-r3-s3.x
juniper / junos 18.4-r3-s4 18.4-r3-s4.x
juniper / junos 18.4-r3-s5 18.4-r3-s5.x
juniper / junos 18.4-r2-s5 18.4-r2-s5.x
juniper / junos 18.4-r2-s6 18.4-r2-s6.x
juniper / junos 18.4-r1-s7 18.4-r1-s7.x
juniper / junos 18.4-r3-s6 18.4-r3-s6.x
juniper / junos 18.4-r2-s9 18.4-r2-s9.x
juniper / junos 18.4-r2-s10 18.4-r2-s10.x
juniper / junos 19.1-r3-s8 19.1-r3-s8.x
juniper / junos 19.1-r1-s5 19.1-r1-s5.x
juniper / junos 19.1-r3-s3 19.1-r3-s3.x
juniper / junos 19.1-r3-s2 19.1-r3-s2.x
juniper / junos 19.1-r2 19.1-r2.x
juniper / junos 19.1-r1-s4 19.1-r1-s4.x
juniper / junos 19.1-r2-s1 19.1-r2-s1.x
juniper / junos 19.1-r3 19.1-r3.x
juniper / junos 19.1-r3-s1 19.1-r3-s1.x
juniper / junos 19.1-r1-s1 19.1-r1-s1.x
juniper / junos 19.1-r1-s3 19.1-r1-s3.x
juniper / junos 19.1-r1-s2 19.1-r1-s2.x
juniper / junos 19.1-r1 19.1-r1.x
juniper / junos 19.1 19.1.x
juniper / junos 19.1-r3-s4 19.1-r3-s4.x
juniper / junos 19.1-r2-s2 19.1-r2-s2.x
juniper / junos 19.1-r1-s6 19.1-r1-s6.x
juniper / junos 19.1-r3-s6 19.1-r3-s6.x
juniper / junos 19.1-r3-s5 19.1-r3-s5.x
juniper / junos 19.1-r2-s3 19.1-r2-s3.x
juniper / junos 19.1-r3-s7 19.1-r3-s7.x
juniper / junos 19.2-r3-s4 19.2-r3-s4.x
juniper / junos 19.2-r1-s7 19.2-r1-s7.x
juniper / junos 19.2-r3-s3 19.2-r3-s3.x
juniper / junos 19.2-r1-s6 19.2-r1-s6.x
juniper / junos 19.2-r3-s1 19.2-r3-s1.x
juniper / junos 19.2-r3-s2 19.2-r3-s2.x
juniper / junos 19.2-r1 19.2-r1.x
juniper / junos 19.2-r1-s1 19.2-r1-s1.x
juniper / junos 19.2-r1-s2 19.2-r1-s2.x
juniper / junos 19.2-r1-s3 19.2-r1-s3.x
juniper / junos 19.2 19.2.x
juniper / junos 19.2-r1-s4 19.2-r1-s4.x
juniper / junos 19.2-r2 19.2-r2.x
juniper / junos 19.2-r1-s5 19.2-r1-s5.x
juniper / junos 19.2-r3 19.2-r3.x
juniper / junos 19.2-r2-s1 19.2-r2-s1.x
juniper / junos 19.2-r1-s8 19.2-r1-s8.x
juniper / junos 19.3-r3-s5 19.3-r3-s5.x
juniper / junos 19.3-r2-s5 19.3-r2-s5.x
juniper / junos 19.3-r3 19.3-r3.x
juniper / junos 19.3-r2-s4 19.3-r2-s4.x
juniper / junos 19.3-r2-s3 19.3-r2-s3.x
juniper / junos 19.3-r2-s2 19.3-r2-s2.x
juniper / junos 19.3-r2 19.3-r2.x
juniper / junos 19.3-r2-s1 19.3-r2-s1.x
juniper / junos 19.3-r1-s1 19.3-r1-s1.x
juniper / junos 19.3 19.3.x
juniper / junos 19.3-r1 19.3-r1.x
juniper / junos 19.3-r3-s2 19.3-r3-s2.x
juniper / junos 19.3-r3-s1 19.3-r3-s1.x
juniper / junos 19.3-r3-s3 19.3-r3-s3.x
juniper / junos 19.3-r2-s6 19.3-r2-s6.x
juniper / junos 19.3-r3-s4 19.3-r3-s4.x
juniper / junos 19.4 19.4.x
juniper / junos 19.4-r3-s6 19.4-r3-s6.x
juniper / junos 19.4-r2-s4 19.4-r2-s4.x
juniper / junos 19.4-r3-s5 19.4-r3-s5.x
juniper / junos 19.4-r1-s4 19.4-r1-s4.x
juniper / junos 19.4-r2-s5 19.4-r2-s5.x
juniper / junos 19.4-r3-s2 19.4-r3-s2.x
juniper / junos 19.4-r3-s3 19.4-r3-s3.x
juniper / junos 19.4-r3-s4 19.4-r3-s4.x
juniper / junos 19.4-r1-s3 19.4-r1-s3.x
juniper / junos 19.4-r3-s1 19.4-r3-s1.x
juniper / junos 19.4-r2-s3 19.4-r2-s3.x
juniper / junos 19.4-r1 19.4-r1.x
juniper / junos 19.4-r1-s2 19.4-r1-s2.x
juniper / junos 19.4-r1-s1 19.4-r1-s1.x
juniper / junos 19.4-r2 19.4-r2.x
juniper / junos 19.4-r2-s1 19.4-r2-s1.x
juniper / junos 19.4-r2-s2 19.4-r2-s2.x
juniper / junos 19.4-r3 19.4-r3.x
juniper / junos 19.4-r2-s6 19.4-r2-s6.x
juniper / junos 19.4-r3-s7 19.4-r3-s7.x
juniper / junos 20.1 20.1.x
juniper / junos 20.1-r3-s3 20.1-r3-s3.x
juniper / junos 20.1-r1-s4 20.1-r1-s4.x
juniper / junos 20.1-r1 20.1-r1.x
juniper / junos 20.1-r1-s2 20.1-r1-s2.x
juniper / junos 20.1-r1-s3 20.1-r1-s3.x
juniper / junos 20.1-r1-s1 20.1-r1-s1.x
juniper / junos 20.1-r2 20.1-r2.x
juniper / junos 20.1-r2-s1 20.1-r2-s1.x
juniper / junos 20.1-r2-s2 20.1-r2-s2.x
juniper / junos 20.1-r3 20.1-r3.x
juniper / junos 20.1-r3-s1 20.1-r3-s1.x
juniper / junos 20.1-r3-s2 20.1-r3-s2.x
juniper / junos 20.2-r3-s3 20.2-r3-s3.x
juniper / junos 20.2 20.2.x
juniper / junos 20.2-r3-s2 20.2-r3-s2.x
juniper / junos 20.2-r3 20.2-r3.x
juniper / junos 20.2-r3-s1 20.2-r3-s1.x
juniper / junos 20.2-r2-s3 20.2-r2-s3.x
juniper / junos 20.2-r2-s2 20.2-r2-s2.x
juniper / junos 20.2-r2 20.2-r2.x
juniper / junos 20.2-r2-s1 20.2-r2-s1.x
juniper / junos 20.2-r1-s3 20.2-r1-s3.x
juniper / junos 20.2-r1 20.2-r1.x
juniper / junos 20.2-r1-s1 20.2-r1-s1.x
juniper / junos 20.2-r1-s2 20.2-r1-s2.x
juniper / junos 20.3-r1-s1 20.3-r1-s1.x
juniper / junos 20.3-r1 20.3-r1.x
juniper / junos 20.3-r2 20.3-r2.x
juniper / junos 20.3-r2-s1 20.3-r2-s1.x
juniper / junos 20.3-r3 20.3-r3.x
juniper / junos 20.3 20.3.x
juniper / junos 20.3-r3-s1 20.3-r3-s1.x
juniper / junos 20.3-r1-s2 20.3-r1-s2.x
juniper / junos 20.3-r3-s3 20.3-r3-s3.x
juniper / junos 20.3-r3-s2 20.3-r3-s2.x
juniper / junos 20.4-r3-s2 20.4-r3-s2.x
juniper / junos 20.4 20.4.x
juniper / junos 20.4-r3-s1 20.4-r3-s1.x
juniper / junos 20.4-r2-s2 20.4-r2-s2.x
juniper / junos 20.4-r3 20.4-r3.x
juniper / junos 20.4-r2 20.4-r2.x
juniper / junos 20.4-r2-s1 20.4-r2-s1.x
juniper / junos 20.4-r1-s1 20.4-r1-s1.x
juniper / junos 20.4-r1 20.4-r1.x
juniper / junos 21.1-r1-s1 21.1-r1-s1.x
juniper / junos 21.1-r1 21.1-r1.x
juniper / junos 21.1-r3 21.1-r3.x
juniper / junos 21.1-r2-s1 21.1-r2-s1.x
juniper / junos 21.1 21.1.x
juniper / junos 21.1-r2 21.1-r2.x
juniper / junos 21.1-r2-s2 21.1-r2-s2.x
juniper / junos 21.2-r1-s2 21.2-r1-s2.x
juniper / junos 21.2-r2-s1 21.2-r2-s1.x
juniper / junos 21.2-r2-s2 21.2-r2-s2.x
juniper / junos 21.2-r2 21.2-r2.x
juniper / junos 21.2 21.2.x
juniper / junos 21.2-r1-s1 21.2-r1-s1.x
juniper / junos 21.2-r1 21.2-r1.x
juniper / junos 21.3-r1 21.3-r1.x
juniper / junos 21.3-r1-s1 21.3-r1-s1.x
juniper / junos 21.3-r1-s2 21.3-r1-s2.x
juniper / junos 21.3 21.3.x
juniper / junos 21.4-r1 21.4-r1.x
juniper / junos 21.4-r1-s1 21.4-r1-s1.x
juniper / junos 21.4-r1-s2 21.4-r1-s2.x
juniper / junos 21.4 21.4.x

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.