CVE-2021-29328
CVE-2021-29328 is a high-severity vulnerability in Moddable with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: High (CVSS 3.x base score 7.1)
- CVSS v2: 5.8
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Moddable
- Published:
- Last modified:
Description
OpenSource Moddable v10.5.0 was discovered to contain buffer over-read in the fxDebugThrow function at /moddable/xs/sources/xsDebug.c.
Frequently asked questions
- What is CVE-2021-29328?
- OpenSource Moddable v10.5.0 was discovered to contain buffer over-read in the fxDebugThrow function at /moddable/xs/sources/xsDebug.c.
- How severe is CVE-2021-29328?
- CVE-2021-29328 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability high.
- Is CVE-2021-29328 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-29328?
- CVE-2021-29328 affects Moddable. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-29328?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-29328 published?
- CVE-2021-29328 was published on 2021-11-19 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:moddable:moddable:10.5.0:*:*:*:*:*:*:*
More vulnerabilities in Moddable
- CVE-2020-25462 — Critical (CVSS 9.8): Heap buffer overflow in the fxCheckArrowFunction function at moddable/xs/sources/xsSyntaxical.c:3562 in Moddable SDK…
- CVE-2019-16366 — Critical (CVSS 9.8): In XS 9.0.0 in Moddable SDK OS180329, there is a heap-based buffer overflow in fxBeginHost in xsAPI.c when called from…
- CVE-2021-29329 — High (CVSS 7.8): OpenSource Moddable v10.5.0 was discovered to contain a stack overflow in the fxBinaryExpressionNodeDistribute function…
- CVE-2021-29327 — High (CVSS 7.8): OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the fx_ArrayBuffer function at…
- CVE-2021-29326 — High (CVSS 7.8): OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the fxIDToString function at…
- CVE-2021-29325 — High (CVSS 7.8): OpenSource Moddable v10.5.0 was discovered to contain a heap buffer overflow in the fx_String_prototype_repeat function…
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- CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
- CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…