How severe is CVE-2026-28771?

CVE-2026-28771 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-28771 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28771?

CVE-2026-28771 affects Datacast Sfx2100 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28771?

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

Does CVE-2026-28771 have an EU (EUVD) identifier?

Yes. CVE-2026-28771 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9366.

When was CVE-2026-28771 published?

CVE-2026-28771 was published on 2026-03-04 and last updated on 2026-06-17.

CVE-2026-28771

CVE-2026-28771 is a medium-severity vulnerability in Datacast Sfx2100 Firmware with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 5.1
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9366
Weakness: CWE-79
Affected product: Datacast Sfx2100 Firmware
Published: 2026-03-04
Last modified: 2026-06-17

Description

A Reflected Cross-Site Scripting (XSS) vulnerability exists in the /index.cgi endpoint of International Datacasting Corporation (IDC) SFX Series SuperFlex Satellite Receiver Web Management Interface version 101. The application fails to adequately sanitize user-supplied input provided via the `cat` parameter before reflecting it in the HTTP response, allowing a remote attacker to execute arbitrary HTML or JavaScript in the victim's browser context.

Frequently asked questions

What is CVE-2026-28771?: A Reflected Cross-Site Scripting (XSS) vulnerability exists in the /index.cgi endpoint of International Datacasting Corporation (IDC) SFX Series SuperFlex Satellite Receiver Web Management Interface version 101. The application fails to adequately sanitize user-supplied input provided via the `cat` parameter before reflecting it in the HTTP response, allowing a remote attacker to execute arbitrary HTML or JavaScript in the victim's browser context.
How severe is CVE-2026-28771?: CVE-2026-28771 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-28771 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28771?: CVE-2026-28771 affects Datacast Sfx2100 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28771?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28771 have an EU (EUVD) identifier?: Yes. CVE-2026-28771 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9366.
When was CVE-2026-28771 published?: CVE-2026-28771 was published on 2026-03-04 and last updated on 2026-06-17.

References

https://www.abdulmhsblog.com/posts/sfx2100-vulns/

Affected products (1)

cpe:2.3:o:datacast:sfx2100_firmware:-:*:*:*:*:*:*:*

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