How severe is CVE-2024-5412?

CVE-2024-5412 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-5412 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-5412?

CVE-2024-5412 primarily affects Zyxel Nebula Lte3301-plus Firmware. In total, 50 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-5412?

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-2024-5412 have an EU (EUVD) identifier?

Yes. CVE-2024-5412 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46634.

When was CVE-2024-5412 published?

CVE-2024-5412 was published on 2024-09-03 and last updated on 2026-06-17.

CVE-2024-5412

CVE-2024-5412 is a high-severity vulnerability in Zyxel Nebula Lte3301-plus Firmware with a CVSS 3.x base score of 7.5. 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 7.5)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-46634
Weakness: CWE-120
Affected product: Zyxel Nebula Lte3301-plus Firmware
Published: 2024-09-03
Last modified: 2026-06-17

Description

A buffer overflow vulnerability in the library "libclinkc" of the Zyxel VMG8825-T50K firmware version 5.50(ABOM.8)C0 could allow an unauthenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.

Frequently asked questions

What is CVE-2024-5412?: A buffer overflow vulnerability in the library "libclinkc" of the Zyxel VMG8825-T50K firmware version 5.50(ABOM.8)C0 could allow an unauthenticated attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.
How severe is CVE-2024-5412?: CVE-2024-5412 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-5412 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-5412?: CVE-2024-5412 primarily affects Zyxel Nebula Lte3301-plus Firmware. In total, 50 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-5412?: 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-2024-5412 have an EU (EUVD) identifier?: Yes. CVE-2024-5412 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46634.
When was CVE-2024-5412 published?: CVE-2024-5412 was published on 2024-09-03 and last updated on 2026-06-17.

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-buffer-overflow-vulnerability-in-some-5g-nr-cpe-dsl-ethernet-cpe-fiber-ont-wifi-extender-and-security-router-devices-09-03-2024

Affected products (50)

cpe:2.3:o:zyxel:nebula_lte3301-plus_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_fwa505_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_fwa710_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_fwa510_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:wx5600-t0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:wx3401-b0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:wx3100-t0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:scr50axe_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:px3321-t1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:pm7300-t0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:pm5100-t0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:pm3100-t0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ax7501-b1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ax7501-b0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg8825-t50k_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg8623-t50b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg4005-b60a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg4005-b50a_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg3927-t50k_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:emg5723-t50k_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex7710-b0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex7501-b0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5601-t1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5601-t0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5512-t0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5510-b0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5401-b1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5401-b0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3510-b0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3501-t0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3500-t0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3301-t0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3300-t1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3300-t0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:dx5401-b1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:dx5401-b0_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:dx4510-b0_firmware:*:*:*:*:*:*:*:*

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