CVE-2021-0294 Details
Description
A vulnerability in Juniper Networks Junos OS, which only affects the release 18.4R2-S5, where a function is inconsistently implemented on Juniper Networks Junos QFX5000 Series and EX4600 Series, and if "storm-control enhanced" is configured, can lead to the enhanced storm control filter group not be installed. It will cause storm control not to work hence allowing an attacker to cause high CPU usage or packet loss issues by sending a large amount of broadcast or unknown unicast packets arriving the device. This issue affects Juniper Networks QFX5100, QFX5110, QFX5120, QFX5200, QFX5210, EX4600, and EX4650, and QFX5100 with QFX 5e Series image installed. QFX5130 and QFX5220 are not affected from this issue. This issue affects Juniper Networks Junos OS 18.4R2-S5 on QFX5000 Series and EX4600 Series. No other product or platform is affected by this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://kb.juniper.net/JSA11196 | CVE | Vendor Advisory |
| https://kb.juniper.net/JSA11196 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-Other | Weakness Not in a Standard CWE Category | [email protected] |
| CWE-474 | Use of Function with Inconsistent Implementations | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| juniper junos | 18.4 r2-s5 |
CPE
Remediation
| |
| juniper ex4600 | All versions |
CPE
Remediation
| |
| juniper ex4650 | All versions |
CPE
Remediation
| |
| juniper qfx5100 | All versions |
CPE
Remediation
| |
| juniper qfx5110 | All versions |
CPE
Remediation
| |
| juniper qfx5120 | All versions |
CPE
Remediation
| |
| juniper qfx5200 | All versions |
CPE
Remediation
| |
| juniper qfx5210 | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Nov 21, 2024 | CVE Modified | CVE |
| May 14, 2024 | CVE Modified | [email protected] |
| Jul 28, 2021 | Initial Analysis | [email protected] |
| Jul 15, 2021 | CVE Modified | [email protected] |