What is CVE-2023-27921?

CVE-2023-27921 is a medium-severity vulnerability in Jins Meme, classified under Use of Hard-coded Credentials. CVSS score: 6.5/10. Published 2023-05-23.

How severe is CVE-2023-27921?

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

Vulnerability in Jins Meme

CVE-2023-27921

JINS MEME CORE Firmware version 2.2.0 and earlier uses a hard-coded cryptographic key, which may lead to data acquired by a sensor of the affected product being decrypted by a network-adjacent attacker.

Published 2023-05-23 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.003 (18.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 18.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Jins Meme
Jins Meme Firmware
Jins Inc. Meme Core — versions Firmware version 2.2.0 and earlier

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

jinsmeme.com/media/2023-04-fwapp2 (Release Notes)
jvn.jp/en/jp/JVN13306058/ (Third Party Advisory)

Frequently asked questions

What is CVE-2023-27921?: CVE-2023-27921 is a medium-severity vulnerability in Jins Meme, classified under Use of Hard-coded Credentials. CVSS score: 6.5/10. Published 2023-05-23.
How severe is CVE-2023-27921?: Medium severity. CVSS v3 base score is 6.5 out of 10.