Critical severity9.8NVD Advisory· Published May 12, 2022· Updated Jun 17, 2026
CVE-2021-42863
CVE-2021-42863
Description
A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0 allows an attacker to construct a fake object or a fake arraybuffer with unlimited size.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3cpe:2.3:a:jerryscript:jerryscript:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:jerryscript:jerryscript:*:*:*:*:*:*:*:*range: <2021-10-15
- (no CPE)
- (no CPE)range: fe3a5c0
Patches
Vulnerability mechanics
References
2- github.com/jerryscript-project/jerryscript/pull/4794nvdPatchThird Party Advisory
- github.com/jerryscript-project/jerryscript/issues/4793nvdExploitPatchThird Party Advisory
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