NVD / CVE Program· CNA ONEKEY

CVE-2024-6198: SNORE Interface Unauthenticated Remote Code Execution

HighCVSS 7.7 · v4.0—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 30/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.29% (FIRST EPSS).
Someone on the same network segment can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
Fixed version: Viasat EM4100 3.8.0.4; ViaSat RM4100 3.8.0.4; Viasat RM4200 3.8.0.4.

Low priority for now. Upgrade to Viasat EM4100 3.8.0.4; ViaSat RM4100 3.8.0.4; Viasat RM4200 3.8.0.4 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

The device exposes a web interface on ports TCP/3030 and TCP/9882. This web service runs lighttpd, which implements the “SNORE” interface. This interface is affected by a stack buffer overflow vulnerability due to insecure path parsing. An attacker with access to the LAN network interface could use a specially crafted HTTP request to exploit a buffer overflow on the modem.

Published: Apr 25, 2025
Updated: Jun 17, 2026
EPSS: 0.2% · 22th percentile
CWE: CWE-120

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 30 / 40 · 7.7 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · ONEKEY: 7.7; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/S:N/AU:Y/R:U/V:C/RE:M/U:Red

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

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

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

Viasat EG1000
- up to and including 4.3.0.1affected · semver
Viasat EG1020
- up to and including 4.3.0.1affected · semver
Viasat EM4100
- before 3.8.0.4affected · semver
Viasat RG1000
- up to and including 4.3.0.1affected · semver
Viasat RG1100
- up to and including 4.3.0.1affected · semver
Viasat RM4200
- before 3.8.0.4affected · semver
Viasat RM5110
- up to and including 4.3.0.1affected · semver
Viasat RM5111
- up to and including 4.3.0.1affected · semver
ViaSat RM4100
- before 3.8.0.4affected · semver

Remediation

Which version to upgrade to

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

Product / package	Fixed version	Source
Viasat EM4100	3.8.0.4	Vendor (CNA)
ViaSat RM4100	3.8.0.4	Vendor (CNA)
Viasat RM4200	3.8.0.4	Vendor (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.

Credits

All researchers

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

Quentin KaiserONEKEYfinder

Not on record for this CVE: EPSS history · patch commit or PR link · variant or chain candidate · public bounty program.

Technical details

Attack conditions

Someone on the same network segment can trigger it.
No account or password is required.
No user action is required.
Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability

Attack vector: Adjacent
Attack complexity: High
Privileges required: None
User interaction: None
Scope: N

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:N/AU:Y/R:U/V:C/RE:M/U:Red

nvd-secondary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1char buf[256];
2memcpy(buf, pkt->data, pkt->len);

Fixed

1char buf[256];
2if (pkt->len > sizeof(buf)) {
3  return -EINVAL;
4}
5memcpy(buf, pkt->data, pkt->len);

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log (1)

Fix✗ → ✓Sep 28, 2026, 10:08 PM UTC

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

References

www.onekey.com/resource/security-advisory-rce-on-viasat-modems-cve-2024-6198

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

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