How severe is CVE-2026-28775?

CVE-2026-28775 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-28775 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.

What products are affected by CVE-2026-28775?

CVE-2026-28775 affects Datacast Sfx2100 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28775?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-28775 have an EU (EUVD) identifier?

Yes. CVE-2026-28775 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9370.

When was CVE-2026-28775 published?

CVE-2026-28775 was published on 2026-03-04 and last updated on 2026-06-17.

CVE-2026-28775

CVE-2026-28775 is a critical-severity vulnerability in Datacast Sfx2100 Firmware with a CVSS 3.x base score of 9.8. 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-1188.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 10.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9370
Weakness: CWE-1188
Affected product: Datacast Sfx2100 Firmware
Published: 2026-03-04
Last modified: 2026-06-17

Description

An unauthenticated Remote Code Execution (RCE) vulnerability exists in the SNMP service of International Datacasting Corporation (IDC) SFX Series SuperFlex SatelliteReceiver. The deployment insecurely provisions the `private` SNMP community string with read/write access by default. Because the SNMP agent runs as root, an unauthenticated remote attacker can utilize `NET-SNMP-EXTEND-MIB` directives, abusing the fact that the system runs a vulnerable version of net-snmp pre 5.8, to execute arbitrary operating system commands with root privileges.

Frequently asked questions

What is CVE-2026-28775?: An unauthenticated Remote Code Execution (RCE) vulnerability exists in the SNMP service of International Datacasting Corporation (IDC) SFX Series SuperFlex SatelliteReceiver. The deployment insecurely provisions the `private` SNMP community string with read/write access by default. Because the SNMP agent runs as root, an unauthenticated remote attacker can utilize `NET-SNMP-EXTEND-MIB` directives, abusing the fact that the system runs a vulnerable version of net-snmp pre 5.8, to execute arbitrary operating system commands with root privileges.
How severe is CVE-2026-28775?: CVE-2026-28775 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-28775 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.
What products are affected by CVE-2026-28775?: CVE-2026-28775 affects Datacast Sfx2100 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28775?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-28775 have an EU (EUVD) identifier?: Yes. CVE-2026-28775 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9370.
When was CVE-2026-28775 published?: CVE-2026-28775 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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