What is CVE-2023-0343?

CVE-2023-0343 is a medium-severity vulnerability in Akuvox E11, classified under Use of Insufficiently Random Values. CVSS score: 6.5/10. Published 2023-03-31.

How severe is CVE-2023-0343?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Akuvox E11

CVE-2023-0343

Akuvox E11 contains a function that encrypts messages which are then forwarded. The IV vector and the key are static, and this may allow an attacker to decrypt messages.

Published 2023-03-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (44.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.6% 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

Akuvox E11 — versions All
Akuvox E11 Firmware

Weakness classification (CWE)

CWE-330 — Use of Insufficiently Random Values

References

www.cisa.gov/news-events/ics-advisories/icsa-23-068-01 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2023-0343?: CVE-2023-0343 is a medium-severity vulnerability in Akuvox E11, classified under Use of Insufficiently Random Values. CVSS score: 6.5/10. Published 2023-03-31.
How severe is CVE-2023-0343?: Medium severity. CVSS v3 base score is 6.5 out of 10.