How severe is CVE-2024-0816?

CVE-2024-0816 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-0816 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-0816?

CVE-2024-0816 primarily affects Zyxel Lte3202-m437 Firmware. In total, 65 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-0816?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-0816 have an EU (EUVD) identifier?

Yes. CVE-2024-0816 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-16602.

When was CVE-2024-0816 published?

CVE-2024-0816 was published on 2024-05-21 and last updated on 2026-06-17.

CVE-2024-0816

CVE-2024-0816 is a medium-severity vulnerability in Zyxel Lte3202-m437 Firmware with a CVSS 3.x base score of 5.5. 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: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-16602
Weakness: CWE-120
Affected product: Zyxel Lte3202-m437 Firmware
Published: 2024-05-21
Last modified: 2026-06-17

Description

The buffer overflow vulnerability in the DX3300-T1 firmware version V5.50(ABVY.4)C0 could allow an authenticated local attacker to cause denial of service (DoS) conditions by executing the CLI command with crafted strings on an affected device.

Frequently asked questions

What is CVE-2024-0816?: The buffer overflow vulnerability in the DX3300-T1 firmware version V5.50(ABVY.4)C0 could allow an authenticated local attacker to cause denial of service (DoS) conditions by executing the CLI command with crafted strings on an affected device.
How severe is CVE-2024-0816?: CVE-2024-0816 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-0816 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-0816?: CVE-2024-0816 primarily affects Zyxel Lte3202-m437 Firmware. In total, 65 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-0816?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-0816 have an EU (EUVD) identifier?: Yes. CVE-2024-0816 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-16602.
When was CVE-2024-0816 published?: CVE-2024-0816 was published on 2024-05-21 and last updated on 2026-06-17.

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-buffer-overflow-vulnerabilities-in-some-5g-nr-4g-lte-cpe-dsl-ethernet-cpe-fiber-ont-wifi-extender-and-home-router-devices-05-21-2024

Affected products (65)

cpe:2.3:o:zyxel:lte3202-m437_firmware:1.00\(abwf.3\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte3301-plus_firmware:1.00\(abqu.5\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte5388-m804_firmware:1.00\(absq.4\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte5398-m904_firmware:1.00\(abq.4\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte7240-m403_firmware:2.00\(abmg.7\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte7480-m804_firmware:1.00\(abra.8\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:lte7490-m904_firmware:1.00\(abqy.7\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nr5103_firmware:4.19\(abyc.5\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nr5103e_firmware:1.00\(acdj.1\)b3:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nr5103ev2_firmware:1.00\(aciq.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nr5307_firmware:1.00\(acjt.0\)b4:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nr7101_firmware:1.00\(abu.9\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nr7102_firmware:1.00\(abyd.2\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nr7103_firmware:1.00\(accz.2\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nr7302_firmware:1.00\(acha.2\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nr7303_firmware:1.00\(acei.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nr7501_firmware:1.00\(aceh.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_fwa505_firmware:1.18\(acko.1\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_fwa510_firmware:1.18\(acgd.1\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_fwa710_firmware:1.17\(acgc.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_lte3301-plus_firmware:1.17\(acca.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_lte7461-m602_firmware:1.15\(ace.3\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_nr5101_firmware:1.16\(accg.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nebula_nr7101_firmware:1.16\(accc.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:dx3300-t1_firmware:5.50\(aby.4\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:dx3301-t0_firmware:5.50\(aby.4\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:dx4510_firmware:5.17\(abyl.6\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:dx5401-b0_firmware:5.17\(abyo.5\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:dx5401-b1_firmware:5.17\(abyo.5\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:emg3525-t50b_firmware:5.50\(abpm.8\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:emg5523-t50b_firmware:5.50\(abpm.8\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:emg5723-t50k_firmware:5.50\(abom.8.2\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3300-t1_firmware:5.50\(aby.4\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3301-t0_firmware:5.50\(aby.4\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3320-t0_firmware:5.71\(yak.2\)d0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3320-t1_firmware:5.71\(yap.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3500-t0_firmware:5.44\(achr.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3501-t0_firmware:5.44\(achr.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex3510_firmware:5.17\(abup.11\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5401-b0_firmware:5.17\(abyo.5\)c0:*:*:*:*:*:*:*

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