CVE-2022-43393

🗓️ 11 Jan 2023 00:00:00Reported by ZyxelType

Zyxel GS1920-24v2 firmware prior to V4.70(ABMH.8)C0, HTTP request processing DoS vulnerability

Reporter	Title	Published	Views	Family All 12
BDU FSTEC	The vulnerability in the implementation of HTTP request processing functions of Zyxel switch microprogramming systems series GS1350, GS1915, GS1920, GS2220 allows a perpetrator to cause service interruptions.	20 Feb 202300:00	–	bdu_fstec
Circl	CVE-2022-43393	11 Jan 202307:28	–	circl
CNNVD	Zyxel GS1920 代码问题漏洞	11 Jan 202300:00	–	cnnvd
Cvelist	CVE-2022-43393	11 Jan 202300:00	–	cvelist
EUVD	EUVD-2022-46432	3 Oct 202520:07	–	euvd
NVD	CVE-2022-43393	11 Jan 202302:15	–	nvd
OSV	CVE-2022-43393	11 Jan 202302:15	–	osv
Prion	Input validation	11 Jan 202302:15	–	prion
Positive Technologies	PT-2023-1414 · Zyxel · Zyxel Gs1915 +4	11 Jan 202300:00	–	ptsecurity
Rapid7 Vulnerability Database (full)	CVE-2022-43393: Improper Check for Unusual or Exceptional Conditions	11 Jan 202300:00	–	rapid7

NVD

Node

AND

zyxel gs1350-6hp_firmwareRange<4.70(abpi.5)c0

zyxel gs1350-6hpMatch-

Node

AND

zyxel gs1350-12hp_firmwareRange<4.70(abpj.5)c0

zyxel gs1350-12hpMatch-

Node

AND

zyxel gs1350-18hp_firmwareRange<4.70(abpk.5)c0

zyxel gs1350-18hpMatch-

Node

AND

zyxel gs1350-26hp_firmwareRange<4.70(abpl.5)c0

zyxel gs1350-26hpMatch-

Node

AND

zyxel gs1915-8_firmwareRange<4.70(acap.3)c0

zyxel gs1915-8Match-

Node

AND

zyxel gs1915-8ep_firmwareRange<4.70(acaq.3)c0

zyxel gs1915-8epMatch-

Node

AND

zyxel gs1915-24e_firmwareRange<4.70(acdr.3)c0

zyxel gs1915-24eMatch-

Node

AND

zyxel gs1915-24ep_firmwareRange<4.70(acds.3)c0

zyxel gs1915-24epMatch-

Node

AND

zyxel gs1920-24v2_firmwareRange<4.70(abmh.8)c0

zyxel gs1920-24v2Match-

Node

AND

zyxel gs1920-48v2_firmwareRange<4.70(abmj.8)c0

zyxel gs1920-48v2Match-

Node

AND

zyxel gs1920-24hpv2_firmwareRange<4.70(abmi.8)c0

zyxel gs1920-24hpv2Match-

Node

AND

zyxel gs1920-48hpv2_firmwareRange<4.70(abmk.8)c0

zyxel gs1920-48hpv2Match-

Node

AND

zyxel gs2220-10_firmwareRange<4.70(abro.6)c0

zyxel gs2220-10Match-

Node

AND

zyxel gs2220-28_firmwareRange<4.70(abrq.6)c0

zyxel gs2220-28Match-

Node

AND

zyxel gs2220-50_firmwareRange<4.70(abrs.6)c0

zyxel gs2220-50Match-

Node

AND

zyxel gs2220-10hp_firmwareRange<4.70(abrp.6)c0

zyxel gs2220-10hpMatch-

Node

AND

zyxel gs2220-28hp_firmwareRange<4.70(abrr.6)c0

zyxel gs2220-28hpMatch-

Node

AND

zyxel gs2220-50hp_firmwareRange<4.70(abrt.6)c0

zyxel gs2220-50hpMatch-

Node

AND

zyxel xgs1930-28_firmwareRange<4.70(abht.5)c0

zyxel xgs1930-28Match-

Node

AND

zyxel xgs1930-28hp_firmwareRange<4.70(abhs.5)c0

zyxel xgs1930-28hpMatch-

Node

AND

zyxel xgs1930-52_firmwareRange<4.70(abhu.5)c0

zyxel xgs1930-52Match-

Node

AND

zyxel xgs1930-52hp_firmwareRange<4.70(abhv.5)c0

zyxel xgs1930-52hpMatch-

Node

AND

zyxel xs1930-10_firmwareRange<4.80(abqe.0)c0

zyxel xs1930-10Match-

Node

AND

zyxel xs1930-12hp_firmwareRange<4.80(abqf.0)c0

zyxel xs1930-12hpMatch-

Node

AND

zyxel xs1930-12f_firmwareRange<4.80(abzv.0)c0

zyxel xs1930-12fMatch-

Node

AND

zyxel xgs2210-28_firmwareRange<4.70(aazj.2)c0

zyxel xgs2210-28Match-

Node

AND

zyxel xgs2210-52_firmwareRange<4.70(aazk.2)c0

zyxel xgs2210-52Match-

Node

AND

zyxel xgs2210-28hp_firmwareRange<4.70(aazl.2)c0

zyxel xgs2210-28hpMatch-

Node

AND

zyxel xgs2210-52hp_firmwareRange<4.70(aazm.2)c0

zyxel xgs2210-52hpMatch-

Node

AND

zyxel xgs2220-30_firmwareRange<4.80(abxn.1)c0

zyxel xgs2220-30Match-

Node

AND

zyxel xgs2220-30hp_firmwareRange<4.80(abxo.1)c0

zyxel xgs2220-30hpMatch-

Node

AND

zyxel xgs2220-30f_firmwareRange<4.80(abye.1)c0

zyxel xgs2220-30fMatch-

Node

AND

zyxel xgs2220-54_firmwareRange<4.80(abxp.1)c0

zyxel xgs2220-54Match-

Node

AND

zyxel xgs2220-54hp_firmwareRange<4.80(abxq.1)c0

zyxel xgs2220-54hpMatch-

Node

AND

zyxel xgs2220-54fp_firmwareRange<4.80(acce.1)c0

zyxel xgs2220-54fpMatch-

Node

AND

zyxel xgs4600-32_firmwareRange<4.70(abbh.4)c0

zyxel xgs4600-32Match-

Node

AND

zyxel xgs4600-32f_firmwareRange<4.70(abbi.4)c0

zyxel xgs4600-32fMatch-

Node

AND

zyxel xgs4600-52f_firmwareRange<4.70(abik.4)c0

zyxel xgs4600-52fMatch-

Node

AND

zyxel xmg1930-30_firmwareRange<4.80(acar.0)

zyxel xmg1930-30Match-

Node

AND

zyxel xmg1930-30hp_firmwareRange<4.80(acas.0)

zyxel xmg1930-30hpMatch-

Node

AND

zyxel xs3800-28_firmwareRange≤4.80(abml.1)c0

zyxel xs3800-28Match-

Node

AND

zyxel mgs3500-24s_firmwareRange<4.10(abbr.2)c0

zyxel mgs3500-24sMatch-

Node

AND

zyxel mgs3520-28_firmwareRange<4.10(aatn.5)c0

zyxel mgs3520-28_firmwareMatch4.10(abqm.1)c0

zyxel mgs3520-28Match-

Node

AND

zyxel mgs3520-28f_firmwareRange<4.10(aatm.4)c0

zyxel mgs3520-28fMatch-

Node

AND

zyxel mgs3530-28_firmwareRange<4.10(acem.2)c0

zyxel mgs3530-28_firmwareMatch4.10(acfj.0)c0

zyxel mgs3530-28Match-

[
  {
    "vendor": "Zyxel",
    "product": "GS1920-24v2 firmware",
    "versions": [
      {
        "version": "< V4.70(ABMH.8)C0",
        "status": "affected"
      }
    ]
  }
]

Source	Link
zyxel	www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-dos-vulnerability-of-switches

17 Jun 2026 05:06Current

8.1High risk

Vulners AI Score8.1

CVSS 3.18.2

EPSS0.00562

SSVC

CWE-754