Buffer overflow in Jerryscript

CVE-2021-26195

An issue was discovered in JerryScript 2.4.0. There is a heap-buffer-overflow in lexer_parse_number in js-lexer.c file.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (63.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Jerryscript — versions 2.4.0
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (x_refsource_CONFIRM, Exploit, Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-26195?: CVE-2021-26195 is a high-severity vulnerability in Jerryscript, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-06-10.
How severe is CVE-2021-26195?: High severity. CVSS v3 base score is 8.8 out of 10.