How severe is CVE-2024-6199?

CVE-2024-6199 has a CVSS 4.0 base score of 7.7, rated high severity.

Is CVE-2024-6199 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-6199?

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-2024-6199 have an EU (EUVD) identifier?

Yes. CVE-2024-6199 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12539.

When was CVE-2024-6199 published?

CVE-2024-6199 was published on 2025-04-25 and last updated on 2026-06-17.

CVE-2024-6199

CVE-2024-6199 is a high-severity vulnerability with a CVSS 4.0 base score of 7.7. 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-120.

Key facts

Severity: High (CVSS 4.0 base score 7.7)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12539
Weakness: CWE-120
Published: 2025-04-25
Last modified: 2026-06-17

Description

An unauthenticated attacker on the WAN interface, with the ability to intercept Dynamic DNS (DDNS) traffic between DDNS services and the modem, could manipulate specific responses to include code that forces a buffer overflow on the modem. Customers that have not enabled Dynamic DNS on their modem are not vulnerable.

Frequently asked questions

What is CVE-2024-6199?: An unauthenticated attacker on the WAN interface, with the ability to intercept Dynamic DNS (DDNS) traffic between DDNS services and the modem, could manipulate specific responses to include code that forces a buffer overflow on the modem. Customers that have not enabled Dynamic DNS on their modem are not vulnerable.
How severe is CVE-2024-6199?: CVE-2024-6199 has a CVSS 4.0 base score of 7.7, rated high severity.
Is CVE-2024-6199 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-6199?: 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-2024-6199 have an EU (EUVD) identifier?: Yes. CVE-2024-6199 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12539.
When was CVE-2024-6199 published?: CVE-2024-6199 was published on 2025-04-25 and last updated on 2026-06-17.

References

https://www.onekey.com/resource/security-advisory-rce-on-viasat-modems-cve-2024-6199

Other CWE-120 (Classic Buffer Overflow) vulnerabilities

CVE-2025-48611 — Critical (CVSS 10.0): In DeviceId of DeviceId.java, there is a possible desync in persistence due to a missing bounds check. This could lead…
CVE-2026-24823 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in FASTSHIFT…
CVE-2026-24810 — Critical (CVSS 10.0): Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb (src/cjson modules).…
CVE-2026-24800 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow…
CVE-2025-9962 — Critical (CVSS 10.0): A buffer overflow vulnerability in Novakon P series allows attackers to gain root permission without prior…
CVE-2010-10016 — Critical (CVSS 10.0): BS.Player version 2.57 (build 1051) contains a vulnerability in its playlist import functionality. When processing .m3u…

Browse all CWE-120 (Classic Buffer Overflow) vulnerabilities →