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Public proof of conceptAwaiting NVD analysis

CVE-2026-6837

A public proof of concept exists; no exploitation attested.

  • Published2026-08-04
  • WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A post-authentication command injection vulnerability in the "export-cgi" CGI program in Zyxel WAX650S firmware versions through 7.10(ABRM.4)C0 could allow an authenticated attacker with administrator privileges to execute OS commands on an affected device.

Timeline

dates in UTC
  1. 2026-08-0403:16CVE publishedNVD

Versions per branch

Products declared by the CNA

As Zyxel, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Zyxel WAX650S firmwareother versions: not affected
    Affected
    • = <= 7.10(ABRM.4)C0no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-08-04

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-6837 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
2026-08-04
Last Modified
2026-10-23
NVD status
Awaiting Analysis
GitHub Advisory
GHSA-fq66-x242-gfpv

Frequently asked questions

What is CVE-2026-6837?

A post-authentication command injection vulnerability in the "export-cgi" CGI program in Zyxel WAX650S firmware versions through 7.10(ABRM.4)C0 could allow an authenticated attacker with administrator privileges to execute OS commands on an affected device.

Is CVE-2026-6837 actively exploited?

Active exploitation of CVE-2026-6837 has not been confirmed. Its EPSS score was 1.5% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-6837?

CVE-2026-6837 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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