Critical severity · published Apr 22, 2021
CVE-2021-0266
The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks Junos OS allows an attacker to take control of any instance of a cSRX deployment…
9.8
CVSS
0.9%
EPSS
No
On KEV
Description
The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks Junos OS allows an attacker to take control of any instance of a cSRX deployment through device management services. This issue affects: Juniper Networks Junos OS on cSRX Series: All versions prior to 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JO
Junos OS · Juniper
20.2; 20.2; 20.2; 20.2; 20.3; 20.3; +2 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-0266
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-0266
Vendor Advisory
https://kb.juniper.net/JSA11157
More from Junos OS
9.8
CVE-2023-36845
Junos OS: EX and SRX Series: A PHP vulnerability in J-Web allows an unauthenticated to control an important environment variable
9.8
CVE-2020-1631
Out of Cycle Security Advisory: Junos OS: Security vulnerability in J-Web and web based (HTTP/HTTPS) services
7.5
CVE-2015-5477
ISC BIND Data Processing Errors Vulnerability
5.3
CVE-2023-36851
Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary files
5.3
CVE-2023-36846
Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files