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CVE-2024-21879· NVD / CVE Program· CNA DIVD

URL parameter manipulations allows an authenticated attacker to execute arbitrary OS commands in Enphase IQ Gateway v4.x to v8.x and < v8.2.4225

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.

HighCVSS 8.7 · v4.0—No exploit Fix available

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Published
Aug 12, 2024
Updated
Jun 17, 2026
EPSS
2.5% · 84th percentile
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Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
34 / 40 · 8.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · DIVD
8.7
NVD has not scored this yet; the score shown is the CNA’s.

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/S:P/AU:Y/R:I/V:C/RE:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
enphaseiq gateway firmware
enphaseiq gateway

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • enphase iq gateway firmware4.0 and later · before 8.2.4225

Versions reported by the vendor

Affected version ranges reported by the assigning authority (DIVD). Independent of NVD's CPE analysis and usually ahead of it.

  • Enphase Envoy

    • 7.x, 6.x, 5.x, 4.xaffected
    • 8.x and later · before 8.2.4225affected · semver

Same product

enphase: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-21876Unauthenticated Path Traversal via URL Parameter in Enphase IQ Gateway version < 8.2.4225
    37Monitor
  • CVE-2024-21878Command Injection through Unsafe File Name Evaluation in internal script in Enphase IQ Gateway v4.x to and including 8.x
    36Monitor
  • CVE-2024-21877Insecure File Generation Based on User Input in Enphase IQ Gateway version 4.x to 8.x and < 8.2.4225
    36Monitor
  • CVE-2024-21880URL parameter manipulations allows an authenticated attacker to execute arbitrary OS commands in Enphase IQ Gateway version 4.x <= 7.x
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Enphase Envoy8.2.4225Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-218780 days apartCommand Injection through Unsafe File Name Evaluation in internal script in Enphase IQ Gateway v4.x to and including 8.x
    36Monitor
  • CVE-2024-218800 days apartURL parameter manipulations allows an authenticated attacker to execute arbitrary OS commands in Enphase IQ Gateway version 4.x <= 7.x
    35Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
P

Weakness class (CWE)

CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')

CVSS 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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records