What is CVE-2021-44992?

CVE-2021-44992 is a medium-severity vulnerability in Jerryscript, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2022-01-25.

How severe is CVE-2021-44992?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in Jerryscript

CVE-2021-44992

There is an Assertion ''ecma_object_is_typedarray (obj_p)'' failed at /jerry-core/ecma/operations/ecma-typedarray-object.c in Jerryscript 3.0.0.

Vulnerability class: Buffer Overflow

Published 2022-01-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.008 (53.8th percentile), scored 2026-10-06.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 53.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Jerryscript — versions 3.0.0

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

security.samsungmobile.com/securityUpdate.smsb (Not Applicable)
github.com/jerryscript-project/jerryscript/issues/4875 (Exploit, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-44992?: CVE-2021-44992 is a medium-severity vulnerability in Jerryscript, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2022-01-25.
How severe is CVE-2021-44992?: Medium severity. CVSS v3 base score is 5.5 out of 10.