CVE-2026-6799
CVE-2026-6799 is a medium-severity vulnerability with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.
Key facts
- Severity: Medium (CVSS 3.x base score 6.3)
- CVSS v2: 6.5
- CVSS v4: 2.1
- EPSS exploit prediction: 1% (64th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-24503
- Weakness: CWE-74
- Published:
- Last modified:
Description
A security flaw has been discovered in Comfast CF-N1-S 2.6.0.1. Affected by this issue is some unknown functionality of the file /cgi-bin/mbox-config?method=SET§ion=ping_config of the component Endpoint. Performing a manipulation of the argument destination results in command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Frequently asked questions
- What is CVE-2026-6799?
- A security flaw has been discovered in Comfast CF-N1-S 2.6.0.1. Affected by this issue is some unknown functionality of the file /cgi-bin/mbox-config?method=SET§ion=ping_config of the component Endpoint. Performing a manipulation of the argument destination results in command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
- How severe is CVE-2026-6799?
- CVE-2026-6799 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2026-6799 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-6799?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-6799 have an EU (EUVD) identifier?
- Yes. CVE-2026-6799 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24503.
- When was CVE-2026-6799 published?
- CVE-2026-6799 was published on 2026-04-21 and last updated on 2026-06-17.
References
- https://github.com/Blackhole23-Lab/-/blob/main/Comfast-CF-N1-S-Router-VUDB.md
- https://vuldb.com/submit/795203
- https://vuldb.com/vuln/358492
- https://vuldb.com/vuln/358492/cti
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