Vulnerability Database

296,213

Total vulnerabilities in the database

CVE-2021-0262

Through routine static code analysis of the Juniper Networks Junos OS software codebase, the Secure Development Life Cycle team identified a Use After Free vulnerability in PFE packet processing on the QFX10002-60C switching platform. Exploitation of this vulnerability may allow a logically adjacent attacker to trigger a Denial of Service (DoS). Continued exploitation of this vulnerability will sustain the Denial of Service (DoS) condition. This issue only affects QFX10002-60C devices. No other product or platform is vulnerable to this issue. This issue affects Juniper Networks Junos OS on QFX10002-60C: 19.1 version 19.1R3-S1 and later versions; 19.1 versions prior to 19.1R3-S3; 19.2 version 19.2R2 and later versions; 19.2 versions prior to 19.2R3-S1; 20.2 versions prior to 20.2R1-S2. This issue does not affect Juniper Networks Junos OS: versions prior to 19.1R3; 19.2 versions prior to 19.2R2; any version of 19.3; version 20.2R2 and later releases.

  • Published: Apr 22, 2021
  • Updated: May 4, 2025
  • CVE: CVE-2021-0262
  • Severity: Low
  • Exploit:

CVSS v2:

  • Severity: Low
  • Score: 3.3
  • AV:A/AC:L/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
juniper / junos 19.1-r3-s1 19.1-r3-s1.x
juniper / junos 20.2-r1 20.2-r1.x
juniper / junos 19.1-r3-s2 19.1-r3-s2.x
juniper / junos 19.2-r2 19.2-r2.x
juniper / junos 20.2-r1-s1 20.2-r1-s1.x
juniper / junos 19.2-r3 19.2-r3.x
juniper / junos 19.2-r2-s1 19.2-r2-s1.x