An improper check for unusual or exceptional conditions in the HTTP request processing function of Zyxel GS1920-24v2 firmware prior to V4.70(ABMH.8)C0, which could allow an unauthenticated attacker to corrupt the contents of the memory and result in a denial-of-service (DoS) condition on a vulnerable device.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.2, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts limited integrity, and availability (service disruption) for affected systems. Impacting 90 products from zyxel, from zyxel, from zyxel and 87 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2023-01-11T02:15:11.403
2024-11-21T07:26:23.700
Modified
CVSSv3.1: 8.2 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | zyxel | gs1350-6hp_firmware | < 4.70\(abpi.5\)c0 | Yes |
| Hardware | zyxel | gs1350-6hp | - | No |
| Operating System | zyxel | gs1350-12hp_firmware | < 4.70\(abpj.5\)c0 | Yes |
| Hardware | zyxel | gs1350-12hp | - | No |
| Operating System | zyxel | gs1350-18hp_firmware | < 4.70\(abpk.5\)c0 | Yes |
| Hardware | zyxel | gs1350-18hp | - | No |
| Operating System | zyxel | gs1350-26hp_firmware | < 4.70\(abpl.5\)c0 | Yes |
| Hardware | zyxel | gs1350-26hp | - | No |
| Operating System | zyxel | gs1915-8_firmware | < 4.70\(acap.3\)c0 | Yes |
| Hardware | zyxel | gs1915-8 | - | No |
| Operating System | zyxel | gs1915-8ep_firmware | < 4.70\(acaq.3\)c0 | Yes |
| Hardware | zyxel | gs1915-8ep | - | No |
| Operating System | zyxel | gs1915-24e_firmware | < 4.70\(acdr.3\)c0 | Yes |
| Hardware | zyxel | gs1915-24e | - | No |
| Operating System | zyxel | gs1915-24ep_firmware | < 4.70\(acds.3\)c0 | Yes |
| Hardware | zyxel | gs1915-24ep | - | No |
| Operating System | zyxel | gs1920-24v2_firmware | < 4.70\(abmh.8\)c0 | Yes |
| Hardware | zyxel | gs1920-24v2 | - | No |
| Operating System | zyxel | gs1920-48v2_firmware | < 4.70\(abmj.8\)c0 | Yes |
| Hardware | zyxel | gs1920-48v2 | - | No |
| Operating System | zyxel | gs1920-24hpv2_firmware | < 4.70\(abmi.8\)c0 | Yes |
| Hardware | zyxel | gs1920-24hpv2 | - | No |
| Operating System | zyxel | gs1920-48hpv2_firmware | < 4.70\(abmk.8\)c0 | Yes |
| Hardware | zyxel | gs1920-48hpv2 | - | No |
| Operating System | zyxel | gs2220-10_firmware | < 4.70\(abro.6\)c0 | Yes |
| Hardware | zyxel | gs2220-10 | - | No |
| Operating System | zyxel | gs2220-28_firmware | < 4.70\(abrq.6\)c0 | Yes |
| Hardware | zyxel | gs2220-28 | - | No |
| Operating System | zyxel | gs2220-50_firmware | < 4.70\(abrs.6\)c0 | Yes |
| Hardware | zyxel | gs2220-50 | - | No |
| Operating System | zyxel | gs2220-10hp_firmware | < 4.70\(abrp.6\)c0 | Yes |
| Hardware | zyxel | gs2220-10hp | - | No |
| Operating System | zyxel | gs2220-28hp_firmware | < 4.70\(abrr.6\)c0 | Yes |
| Hardware | zyxel | gs2220-28hp | - | No |
| Operating System | zyxel | gs2220-50hp_firmware | < 4.70\(abrt.6\)c0 | Yes |
| Hardware | zyxel | gs2220-50hp | - | No |
| Operating System | zyxel | xgs1930-28_firmware | < 4.70\(abht.5\)c0 | Yes |
| Hardware | zyxel | xgs1930-28 | - | No |
| Operating System | zyxel | xgs1930-28hp_firmware | < 4.70\(abhs.5\)c0 | Yes |
| Hardware | zyxel | xgs1930-28hp | - | No |
| Operating System | zyxel | xgs1930-52_firmware | < 4.70\(abhu.5\)c0 | Yes |
| Hardware | zyxel | xgs1930-52 | - | No |
| Operating System | zyxel | xgs1930-52hp_firmware | < 4.70\(abhv.5\)c0 | Yes |
| Hardware | zyxel | xgs1930-52hp | - | No |
| Operating System | zyxel | xs1930-10_firmware | < 4.80\(abqe.0\)c0 | Yes |
| Hardware | zyxel | xs1930-10 | - | No |
| Operating System | zyxel | xs1930-12hp_firmware | < 4.80\(abqf.0\)c0 | Yes |
| Hardware | zyxel | xs1930-12hp | - | No |
| Operating System | zyxel | xs1930-12f_firmware | < 4.80\(abzv.0\)c0 | Yes |
| Hardware | zyxel | xs1930-12f | - | No |
| Operating System | zyxel | xgs2210-28_firmware | < 4.70\(aazj.2\)c0 | Yes |
| Hardware | zyxel | xgs2210-28 | - | No |
| Operating System | zyxel | xgs2210-52_firmware | < 4.70\(aazk.2\)c0 | Yes |
| Hardware | zyxel | xgs2210-52 | - | No |
| Operating System | zyxel | xgs2210-28hp_firmware | < 4.70\(aazl.2\)c0 | Yes |
| Hardware | zyxel | xgs2210-28hp | - | No |
| Operating System | zyxel | xgs2210-52hp_firmware | < 4.70\(aazm.2\)c0 | Yes |
| Hardware | zyxel | xgs2210-52hp | - | No |
| Operating System | zyxel | xgs2220-30_firmware | < 4.80\(abxn.1\)c0 | Yes |
| Hardware | zyxel | xgs2220-30 | - | No |
| Operating System | zyxel | xgs2220-30hp_firmware | < 4.80\(abxo.1\)c0 | Yes |
| Hardware | zyxel | xgs2220-30hp | - | No |
| Operating System | zyxel | xgs2220-30f_firmware | < 4.80\(abye.1\)c0 | Yes |
| Hardware | zyxel | xgs2220-30f | - | No |
| Operating System | zyxel | xgs2220-54_firmware | < 4.80\(abxp.1\)c0 | Yes |
| Hardware | zyxel | xgs2220-54 | - | No |
| Operating System | zyxel | xgs2220-54hp_firmware | < 4.80\(abxq.1\)c0 | Yes |
| Hardware | zyxel | xgs2220-54hp | - | No |
| Operating System | zyxel | xgs2220-54fp_firmware | < 4.80\(acce.1\)c0 | Yes |
| Hardware | zyxel | xgs2220-54fp | - | No |
| Operating System | zyxel | xgs4600-32_firmware | < 4.70\(abbh.4\)c0 | Yes |
| Hardware | zyxel | xgs4600-32 | - | No |
| Operating System | zyxel | xgs4600-32f_firmware | < 4.70\(abbi.4\)c0 | Yes |
| Hardware | zyxel | xgs4600-32f | - | No |
| Operating System | zyxel | xgs4600-52f_firmware | < 4.70\(abik.4\)c0 | Yes |
| Hardware | zyxel | xgs4600-52f | - | No |
| Operating System | zyxel | xmg1930-30_firmware | < 4.80\(acar.0\) | Yes |
| Hardware | zyxel | xmg1930-30 | - | No |
| Operating System | zyxel | xmg1930-30hp_firmware | < 4.80\(acas.0\) | Yes |
| Hardware | zyxel | xmg1930-30hp | - | No |
| Operating System | zyxel | xs3800-28_firmware | ≤ 4.80\(abml.1\)c0 | Yes |
| Hardware | zyxel | xs3800-28 | - | No |
| Operating System | zyxel | mgs3500-24s_firmware | < 4.10\(abbr.2\)c0 | Yes |
| Hardware | zyxel | mgs3500-24s | - | No |
| Operating System | zyxel | mgs3520-28_firmware | < 4.10\(aatn.5\)c0 | Yes |
| Operating System | zyxel | mgs3520-28_firmware | 4.10\(abqm.1\)c0 | Yes |
| Hardware | zyxel | mgs3520-28 | - | No |
| Operating System | zyxel | mgs3520-28f_firmware | < 4.10\(aatm.4\)c0 | Yes |
| Hardware | zyxel | mgs3520-28f | - | No |
| Operating System | zyxel | mgs3530-28_firmware | < 4.10\(acem.2\)c0 | Yes |
| Operating System | zyxel | mgs3530-28_firmware | 4.10\(acfj.0\)c0 | Yes |
| Hardware | zyxel | mgs3530-28 | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For zyxel's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.