No exploitation reportedFix available

CVE-2024-21879

Q: Is CVE-2024-21879 actively exploited?

Active exploitation of CVE-2024-21879 has not been confirmed. Its EPSS score was 2.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2024-21879?

CVE-2024-21879 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2024-08-12
Fixed in8.2.4225
WeaknessCWE-77 · CWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2024-08-1213:38CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-21879?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-21879?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

CISA-ADP · NVD

Enphase envoy

Branch	Affected	Fixed in	Source
8.2	≥ 4.0, < 8.2.4225	8.2.4225	CISA-ADP

Enphase iq gateway firmwareversion to verify

Branch	Affected	Fixed in	Source
8.2	≥ 4.0, < 8.2.4225	8.2.4225	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Enphase envoy to 8.2.4225

Advisories and patches

enphase.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-08-12
OpenCVESSVC decisionnone—
CNACVSS 4.08.7read 2026-10-23
NVDCVSS 3.18.8read 2026-10-23
CNAweakness (CWE)CWE-77read 2026-10-23
NVDweakness (CWE)CWE-78read 2026-10-23
FIRST EPSSEPSS score2.5 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:I/V:C/RE:H/U:X
Published: 2024-08-12
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2024-21879?

Is CVE-2024-21879 actively exploited?

Active exploitation of CVE-2024-21879 has not been confirmed. Its EPSS score was 2.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-21879?

CVE-2024-21879 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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