VulnerabilityModified
CVE-2021-45484
In NetBSD through 9.2, the IPv6 fragment ID generation algorithm employs a weak cryptographic PRNG.
HIGH 7.5EPSS 0.96%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In NetBSD through 9.2, the IPv6 fragment ID generation algorithm employs a weak cryptographic PRNG.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.96% probability · 60th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-338
- Affected
- netbsd/netbsd
- Source
- cve@mitre.org
References
- http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2021-001.txt.ascVendor Advisory
- https://arxiv.org/pdf/2112.09604.pdfThird Party Advisory
- http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2021-001.txt.ascVendor Advisory
- https://arxiv.org/pdf/2112.09604.pdfThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.