How severe is CVE-2021-46335?

CVE-2021-46335 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-46335 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-46335?

CVE-2021-46335 affects Moddable Moddable Sdk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-46335?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-46335 published?

CVE-2021-46335 was published on 2022-01-20 and last updated on 2026-06-17.

CVE-2021-46335

CVE-2021-46335 is a medium-severity vulnerability in Moddable Moddable Sdk with a CVSS 3.x base score of 5.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Moddable Moddable Sdk
Published: 2022-01-20
Last modified: 2026-06-17

Description

Moddable SDK v11.5.0 was discovered to contain a NULL pointer dereference in the component fx_Function_prototype_hasInstance.

Frequently asked questions

What is CVE-2021-46335?: Moddable SDK v11.5.0 was discovered to contain a NULL pointer dereference in the component fx_Function_prototype_hasInstance.
How severe is CVE-2021-46335?: CVE-2021-46335 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-46335 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-46335?: CVE-2021-46335 affects Moddable Moddable Sdk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-46335?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-46335 published?: CVE-2021-46335 was published on 2022-01-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:moddable:moddable_sdk:11.5.0:*:*:*:*:*:*:*

More vulnerabilities in Moddable Moddable Sdk

CVE-2021-46334 — High (CVSS 7.8): Moddable SDK v11.5.0 was discovered to contain a stack buffer overflow via the component __interceptor_strcat.
CVE-2021-46332 — High (CVSS 7.8): Moddable SDK v11.5.0 was discovered to contain a heap-buffer-overflow via xs/sources/xsDataView.c in fxUint8Getter.
CVE-2021-46328 — High (CVSS 7.8): Moddable SDK v11.5.0 was discovered to contain a heap-buffer-overflow via the component __libc_start_main.
CVE-2021-46326 — High (CVSS 7.8): Moddable SDK v11.5.0 was discovered to contain a heap-buffer-overflow via the component __asan_memcpy.
CVE-2021-46333 — Medium (CVSS 5.5): Moddable SDK v11.5.0 was discovered to contain an invalid memory access vulnerability via the component __asan_memmove.
CVE-2021-46331 — Medium (CVSS 5.5): Moddable SDK v11.5.0 was discovered to contain a SEGV vulnerability via xs/sources/xsProxy.c in fxProxyGetPrototype.

All CVEs affecting Moddable Moddable Sdk →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…

Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →