What is CVE-2022-25044?

CVE-2022-25044 is a high-severity vulnerability in Espruino, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-03-05.

How severe is CVE-2022-25044?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Espruino

CVE-2022-25044

Espruino 2v11.251 was discovered to contain a stack buffer overflow via src/jsvar.c in jsvNewFromString.

Vulnerability class: Buffer Overflow

Published 2022-03-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.5th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Espruino — versions 2.11.251

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/espruino/Espruino/issues/2142 (Exploit, Patch, Third Party Advisory, Issue Tracking)
github.com/espruino/Espruino/commit/e069be2ecc5060ef47391716e4de94999595b260 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-25044?: CVE-2022-25044 is a high-severity vulnerability in Espruino, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-03-05.
How severe is CVE-2022-25044?: High severity. CVSS v3 base score is 7.8 out of 10.