How severe is CVE-2024-21879?

CVE-2024-21879 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-21879 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21879?

CVE-2024-21879 affects Enphase Iq Gateway Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21879?

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.

Does CVE-2024-21879 have an EU (EUVD) identifier?

Yes. CVE-2024-21879 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19490.

When was CVE-2024-21879 published?

CVE-2024-21879 was published on 2024-08-12 and last updated on 2026-06-17.

CVE-2024-21879

CVE-2024-21879 is a high-severity vulnerability in Enphase Iq Gateway Firmware with a CVSS 3.x base score of 8.8. 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-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 2% (85th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19490
Weakness: CWE-78
Affected product: Enphase Iq Gateway Firmware
Published: 2024-08-12
Last modified: 2026-06-17

Description

Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability through an url parameter of an authenticated enpoint in Enphase IQ Gateway (formerly known as Envoy) allows OS Command Injection.This issue affects Envoy: from 4.x to 8.x and < 8.2.4225.

Frequently asked questions

What is CVE-2024-21879?: Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability through an url parameter of an authenticated enpoint in Enphase IQ Gateway (formerly known as Envoy) allows OS Command Injection.This issue affects Envoy: from 4.x to 8.x and < 8.2.4225.
How severe is CVE-2024-21879?: CVE-2024-21879 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-21879 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21879?: CVE-2024-21879 affects Enphase Iq Gateway Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21879?: 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.
Does CVE-2024-21879 have an EU (EUVD) identifier?: Yes. CVE-2024-21879 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19490.
When was CVE-2024-21879 published?: CVE-2024-21879 was published on 2024-08-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:enphase:iq_gateway_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Enphase Iq Gateway Firmware

CVE-2024-21878 — Critical (CVSS 9.8): Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in Enphase IQ Gateway…
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CVE-2024-21880 — High (CVSS 7.2): Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability via the url parameter…
CVE-2024-21877 — Medium (CVSS 6.5): Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability through a url parameter in…

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