What is CVE-2021-0289?

CVE-2021-0289 is a medium-severity vulnerability in Juniper Acx1000, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 6.5/10. Published 2021-07-15.

How severe is CVE-2021-0289?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Juniper Acx1000

CVE-2021-0289

When user-defined ARP Policer is configured and applied on one or more Aggregated Ethernet (AE) interface units, a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability between the Device Control Daemon (DCD) and firewall process…

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

EPSS: 0.003 (17.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

sirt@juniper.net (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2021-0289?: CVE-2021-0289 is a medium-severity vulnerability in Juniper Acx1000, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 6.5/10. Published 2021-07-15.
How severe is CVE-2021-0289?: Medium severity. CVSS v3 base score is 6.5 out of 10.