How severe is CVE-2025-4147?

CVE-2025-4147 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-4147 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4147?

CVE-2025-4147 affects Netgear Ex6200 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4147?

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-2025-4147 have an EU (EUVD) identifier?

Yes. CVE-2025-4147 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12790.

When was CVE-2025-4147 published?

CVE-2025-4147 was published on 2025-05-01 and last updated on 2026-06-17.

CVE-2025-4147

CVE-2025-4147 is a high-severity vulnerability in Netgear Ex6200 Firmware with a CVSS 3.x base score of 8.8. 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 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 8.7
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12790
Weakness: CWE-120
Affected product: Netgear Ex6200 Firmware
Published: 2025-05-01
Last modified: 2026-06-17

Description

A vulnerability has been found in Netgear EX6200 1.0.3.94 and classified as critical. Affected by this vulnerability is the function sub_47F7C. The manipulation of the argument host leads to buffer overflow. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2025-4147?: A vulnerability has been found in Netgear EX6200 1.0.3.94 and classified as critical. Affected by this vulnerability is the function sub_47F7C. The manipulation of the argument host leads to buffer overflow. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2025-4147?: CVE-2025-4147 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-4147 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4147?: CVE-2025-4147 affects Netgear Ex6200 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4147?: 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-2025-4147 have an EU (EUVD) identifier?: Yes. CVE-2025-4147 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12790.
When was CVE-2025-4147 published?: CVE-2025-4147 was published on 2025-05-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:netgear:ex6200_firmware:1.0.3.94:*:*:*:*:*:*:*

More vulnerabilities in Netgear Ex6200 Firmware

CVE-2018-21153 — Critical (CVSS 9.8): Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D7800 before…
CVE-2018-21162 — Critical (CVSS 9.8): Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D6400 before…
CVE-2018-21134 — Critical (CVSS 9.8): Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects…
CVE-2025-4150 — High (CVSS 8.8): A vulnerability was found in Netgear EX6200 1.0.3.94. It has been declared as critical. This vulnerability affects the…
CVE-2025-4149 — High (CVSS 8.8): A vulnerability was found in Netgear EX6200 1.0.3.94. It has been classified as critical. This affects the function…
CVE-2025-4148 — High (CVSS 8.8): A vulnerability was found in Netgear EX6200 1.0.3.94 and classified as critical. Affected by this issue is the function…

All CVEs affecting Netgear Ex6200 Firmware →

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 →