What is CVE-2021-0270?

CVE-2021-0270 is a high-severity vulnerability in Juniper Junos, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.5/10. Published 2021-04-22.

How severe is CVE-2021-0270?

High severity. CVSS v3 base score is 7.5 out of 10.

Use After Free in Juniper Junos

CVE-2021-0270

On PTX Series and QFX10k Series devices with the "inline-jflow" feature enabled, a use after free weakness in the Packet Forwarding Engine (PFE) microkernel architecture of Juniper Networks Junos OS may allow an attacker to cause a Denial…

Vulnerability class: Race Condition

EPSS: 0.007 (49.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

sirt@juniper.net (x_refsource_MISC, Vendor Advisory)
sirt@juniper.net (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0270?: CVE-2021-0270 is a high-severity vulnerability in Juniper Junos, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.5/10. Published 2021-04-22.
How severe is CVE-2021-0270?: High severity. CVSS v3 base score is 7.5 out of 10.