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Vulnerability record · CVE-2026-2823 · published 20 February 2026

CVE-2026-2823: Comfast cf-e7 firmware injection vulnerability

Comfast · Cf E7 Firmware

A vulnerability was detected in Comfast CF-E7 2.6.0.9. The impacted element is the function sub_41ACCC of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone of the component webmggnt. Performing a manipulation of the argument timestr results in command injection. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

2.1 CVSS 4.0 Low EPSS 11% · top 4.1% CWE-74 · InjectionCWE-77 · Command injection
2.1CVSS 4.0 base score, v2 6.5
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

A vulnerability was detected in Comfast CF-E7 2.6.0.9. The impacted element is the function sub_41ACCC of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone of the component webmggnt. Performing a manipulation of the argument timestr results in command injection. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/jinhao118/cve/blob/main/ComFast%20Router_3.md ExploitThird Party Advisory
https://vuldb.com/?ctiid.346948 Permissions RequiredVDB Entry
https://vuldb.com/?id.346948 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.753871 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-2823), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.