How severe is CVE-2024-21877?

CVE-2024-21877 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2024-21877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21877?

CVE-2024-21877 affects Enphase Iq Gateway Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21877?

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

Does CVE-2024-21877 have an EU (EUVD) identifier?

Yes. CVE-2024-21877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19488.

When was CVE-2024-21877 published?

CVE-2024-21877 was published on 2024-08-12 and last updated on 2026-06-17.

CVE-2024-21877

CVE-2024-21877 is a medium-severity vulnerability in Enphase Iq Gateway Firmware with a CVSS 3.x base score of 6.5. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 9.2
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-19488
Weakness: CWE-22
Affected product: Enphase Iq Gateway Firmware
Published: 2024-08-12
Last modified: 2026-06-17

Description

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability through a url parameter in Enphase IQ Gateway (formerly known as Envoy) allows File Manipulation. The endpoint requires authentication.This issue affects Envoy: from 4.x to 8.0 and < 8.2.4225.

Frequently asked questions

What is CVE-2024-21877?: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability through a url parameter in Enphase IQ Gateway (formerly known as Envoy) allows File Manipulation. The endpoint requires authentication.This issue affects Envoy: from 4.x to 8.0 and < 8.2.4225.
How severe is CVE-2024-21877?: CVE-2024-21877 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2024-21877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21877?: CVE-2024-21877 affects Enphase Iq Gateway Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-21877 have an EU (EUVD) identifier?: Yes. CVE-2024-21877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-19488.
When was CVE-2024-21877 published?: CVE-2024-21877 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…
CVE-2024-21876 — Critical (CVSS 9.1): Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability via a URL parameter in…
CVE-2024-21879 — High (CVSS 8.8): Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability through an url…
CVE-2024-21880 — High (CVSS 7.2): Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability via the url parameter…

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