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High severity7.8NVD Advisory· Published Jan 27, 2022· Updated Jun 17, 2026

CVE-2021-46521

CVE-2021-46521

Description

Cesanta MJS v2.20.0 was discovered to contain a global buffer overflow via c_vsnprintf at mjs/src/common/str_util.c.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3

Cesanta/MJSdescription
Cesanta/mjs2 versions
cpe:2.3:a:cesanta:mjs:2.20.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:cesanta:mjs:2.20.0:*:*:*:*:*:*:*
- (no CPE)range: <=2.20.0

Patches

Vulnerability mechanics

References

1

github.com/cesanta/mjs/issues/190nvdExploitIssue TrackingThird Party Advisory

News mentions

0

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