High severity · published Dec 25, 2021
CVE-2021-45487
In NetBSD through 9.2, the IPv4 ID generation algorithm does not use appropriate cryptographic measures
7.5
CVSS
1%
EPSS
No
On KEV
Description
In NetBSD through 9.2, the IPv4 ID generation algorithm does not use appropriate cryptographic measures.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
Netbsd · Netbsd
through 9.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45487
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45487
Vendor Advisory
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2021-001.txt.asc
Third Party Advisory
https://arxiv.org/pdf/2112.09604.pdf
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