How severe is CVE-2023-37929?

CVE-2023-37929 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-37929 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-37929?

CVE-2023-37929 primarily affects Zyxel Dx3300-t1 Firmware. In total, 32 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-37929?

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

Does CVE-2023-37929 have an EU (EUVD) identifier?

Yes. CVE-2023-37929 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-41782.

When was CVE-2023-37929 published?

CVE-2023-37929 was published on 2024-05-21 and last updated on 2026-06-17.

CVE-2023-37929

CVE-2023-37929 is a medium-severity vulnerability in Zyxel Dx3300-t1 Firmware with a CVSS 3.x base score of 6.5. 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 6.5)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-41782
Weakness: CWE-120
Affected product: Zyxel Dx3300-t1 Firmware
Published: 2024-05-21
Last modified: 2026-06-17

Description

The buffer overflow vulnerability in the CGI program of the VMG3625-T50B firmware version V5.50(ABPM.8)C0 could allow an authenticated remote attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.

Frequently asked questions

What is CVE-2023-37929?: The buffer overflow vulnerability in the CGI program of the VMG3625-T50B firmware version V5.50(ABPM.8)C0 could allow an authenticated remote attacker to cause denial of service (DoS) conditions by sending a crafted HTTP request to a vulnerable device.
How severe is CVE-2023-37929?: CVE-2023-37929 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-37929 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-37929?: CVE-2023-37929 primarily affects Zyxel Dx3300-t1 Firmware. In total, 32 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-37929?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-37929 have an EU (EUVD) identifier?: Yes. CVE-2023-37929 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-41782.
When was CVE-2023-37929 published?: CVE-2023-37929 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 (32)

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\(abyl.5\)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: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\(abup.9\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5401-b0_firmware:5.17\(abyo.5\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5401-b1_firmware:5.17\(abyo.5\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5501-b0_firmware:5.17\(abry.4\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5510_firmware:5.17\(abqx.8\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5512-t0_firmware:5.70\(aceg.2\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5600-t1_firmware:5.70\(acdz.2\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5601-t0_firmware:5.70\(acdz.2\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex5601-t1_firmware:5.70\(acdz.2\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ex7710-b0_firmware:5.18\(acak.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg3625-t50b_firmware:5.50\(abpm.8\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg3927-t50k_firmware:5.50\(abom.8.2\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg8623-t50b_firmware:5.50\(abpm.8\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:vmg8825-t50k_firmware:5.50\(abom.8.2\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ax7501-b0_firmware:5.17\(abpc.4\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:ax7501-b1_firmware:5.17\(abpc.4\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:wx3100-t0_firmware:5.50\(abl.3\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:wx5600-t0_firmware:5.70\(aceb.2\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:wx5610-b0_firmware:5.18\(acgj.0\)c0:*:*:*:*:*:*:*
cpe:2.3:o:zyxel:nbg7510_firmware:1.00\(abzy.5\)c0:*:*:*:*:*:*:*

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