Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-7273

A stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(ABTQ.1)C0 could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4f1c439c3303bd2f72ee4eaa45f710013f1daadf94fb7cdbe5750825bbe458d2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 10 assertions

{"defaultStatus":"unaffected","product":"GS1900-24HPv2 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(ABTP.1)C0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/8

{"defaultStatus":"unaffected","product":"GS1900-24 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHL.1)C0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/5

{"defaultStatus":"unaffected","product":"GS1900-24E firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHK.1)C0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/6

{"defaultStatus":"unaffected","product":"GS1900-48 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHN.1)C0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/9

{"defaultStatus":"unaffected","product":"GS1900-10HP firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAZI.1)C0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/3

{"defaultStatus":"unaffected","product":"GS1900-8HP firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHI.1)C0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/2

{"defaultStatus":"unaffected","product":"GS1900-8 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHH.1)C0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"GS1900-24EP firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(ABTO.1)C0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/7

{"defaultStatus":"unaffected","product":"GS1900-48HPv2 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(ABTQ.1)C0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"GS1900-16 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHJ.1)C0"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/4

Affected products and versions

10 source assertions
{"defaultStatus":"unaffected","product":"GS1900-24HPv2 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(ABTP.1)C0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/8
{"defaultStatus":"unaffected","product":"GS1900-24 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHL.1)C0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/5
{"defaultStatus":"unaffected","product":"GS1900-24E firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHK.1)C0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/6
{"defaultStatus":"unaffected","product":"GS1900-48 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHN.1)C0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/9
{"defaultStatus":"unaffected","product":"GS1900-10HP firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAZI.1)C0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/3
{"defaultStatus":"unaffected","product":"GS1900-8HP firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHI.1)C0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/2
{"defaultStatus":"unaffected","product":"GS1900-8 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHH.1)C0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"GS1900-24EP firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(ABTO.1)C0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/7
{"defaultStatus":"unaffected","product":"GS1900-48HPv2 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(ABTQ.1)C0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/0
{"defaultStatus":"unaffected","product":"GS1900-16 firmware","vendor":"Zyxel","versions":[{"status":"affected","version":"<= 2.90(AAHJ.1)C0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/affected/4

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-121","description":"CWE-121 Stack-based buffer overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"tags":["vendor-advisory"],"url":"https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-stack-based-buffer-overflow-vulnerability-in-gs1900-series-switches-06-16-2026"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:fb351e2982915a5a48f915f472aed4e77421cf9c1543927c1997651f2d2945f2 · sha256:f3697533f0d490ca… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer