What is CVE-2021-38424?

CVE-2021-38424 is a medium-severity vulnerability in Delta Electronics Dialink, classified under Improper Neutralization of Formula Elements in a CSV File. CVSS score: 5.9/10. Published 2021-11-03.

How severe is CVE-2021-38424?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Delta Electronics Dialink

CVE-2021-38424

The tag interface of Delta Electronics DIALink versions 1.2.4.0 and prior is vulnerable to an attacker injecting formulas into the tag data. Those formulas may then be executed when it is opened with a spreadsheet application.

Published 2021-11-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.005 (41.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Delta Electronics Dialink — versions All
Deltaww Dialink

Weakness classification (CWE)

CWE-1236 — Improper Neutralization of Formula Elements in a CSV File

References

us-cert.cisa.gov/ics/advisories/icsa-21-294-02 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2021-38424?: CVE-2021-38424 is a medium-severity vulnerability in Delta Electronics Dialink, classified under Improper Neutralization of Formula Elements in a CSV File. CVSS score: 5.9/10. Published 2021-11-03.
How severe is CVE-2021-38424?: Medium severity. CVSS v3 base score is 5.9 out of 10.