What is CVE-2022-46397?

CVE-2022-46397 is a high-severity vulnerability in Lfprojects Vector Packet Processor, classified under Generation of Predictable IV with CBC Mode. CVSS score: 7.5/10. Published 2023-03-28.

How severe is CVE-2022-46397?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Lfprojects Vector Packet Processor

CVE-2022-46397

FP.io VPP (Vector Packet Processor) 22.10, 22.06, 22.02, 21.10, 21.06, 21.01, 20.09, 20.05, 20.01, 19.08, and 19.04 Generates a Predictable IV with CBC Mode.

Published 2023-03-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (48.8th percentile), scored 2026-10-21.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Lfprojects Vector Packet Processor — versions 19.04, 19.08, 20.01

Weakness classification (CWE)

CWE-329 — Generation of Predictable IV with CBC Mode

References

s3-docs.fd.io/vpp/23.02/ (Product)
lists.fd.io/g/security-announce/message/2 (Vendor Advisory)

Frequently asked questions

What is CVE-2022-46397?: CVE-2022-46397 is a high-severity vulnerability in Lfprojects Vector Packet Processor, classified under Generation of Predictable IV with CBC Mode. CVSS score: 7.5/10. Published 2023-03-28.
How severe is CVE-2022-46397?: High severity. CVSS v3 base score is 7.5 out of 10.