How severe is CVE-2026-2534?

CVE-2026-2534 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-2026-2534 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2534?

CVE-2026-2534 affects Comfast Cf-n1 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2534?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-2534 have an EU (EUVD) identifier?

Yes. CVE-2026-2534 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6127.

When was CVE-2026-2534 published?

CVE-2026-2534 was published on 2026-02-16 and last updated on 2026-06-17.

CVE-2026-2534

CVE-2026-2534 is a medium-severity vulnerability in Comfast Cf-n1 Firmware with a CVSS 3.x base score of 6.3. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-77.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
CVSS v2: 6.5
CVSS v4: 2.1
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6127
Weakness: CWE-77
Affected product: Comfast Cf-n1 Firmware
Published: 2026-02-16
Last modified: 2026-06-17

Description

A vulnerability has been found in Comfast CF-N1 V2 2.6.0.2. The affected element is the function sub_44AC4C of the file /cgi-bin/mbox-config?method=SET&section=ptest_bandwidth. The manipulation of the argument bandwidth leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-2534?: A vulnerability has been found in Comfast CF-N1 V2 2.6.0.2. The affected element is the function sub_44AC4C of the file /cgi-bin/mbox-config?method=SET&section=ptest_bandwidth. The manipulation of the argument bandwidth leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-2534?: CVE-2026-2534 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-2026-2534 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2534?: CVE-2026-2534 affects Comfast Cf-n1 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2534?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-2534 have an EU (EUVD) identifier?: Yes. CVE-2026-2534 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6127.
When was CVE-2026-2534 published?: CVE-2026-2534 was published on 2026-02-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:comfast:cf-n1_firmware:2.6.0.2:*:*:*:*:*:*:*

More vulnerabilities in Comfast Cf-n1 Firmware

CVE-2026-2535 — Medium (CVSS 6.3): A vulnerability was found in Comfast CF-N1 V2 2.6.0.2. The impacted element is the function sub_44AB9C of the file…
CVE-2025-9586 — Medium (CVSS 6.3): A vulnerability was identified in Comfast CF-N1 2.6.0. This vulnerability affects the function wireless_device_dissoc…
CVE-2025-9585 — Medium (CVSS 6.3): A vulnerability was determined in Comfast CF-N1 2.6.0. This affects the function wifilith_delete_pic_file of the file…
CVE-2025-9584 — Medium (CVSS 6.3): A vulnerability was found in Comfast CF-N1 2.6.0. Affected by this issue is the function update_interface_png of the…
CVE-2025-9583 — Medium (CVSS 6.3): A vulnerability has been found in Comfast CF-N1 2.6.0. Affected by this vulnerability is the function ping_config of…
CVE-2025-9582 — Medium (CVSS 6.3): A flaw has been found in Comfast CF-N1 2.6.0. Affected is the function ntp_timezone of the file /usr/bin/webmgnt.…

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