HOMEVULNERABILITIESCVE-2026-29126
HIGH

CVE-2026-29126

CWE-732Published: March 5, 2026· Updated: Mar 11, 2026

7.8
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:1.6th

Official Description

Incorrect permission assignment (world-writable file) in /etc/udhcpc/default.script in International Data Casting (IDC) SFX2100 Satellite Receiver allows a local unprivileged attacker to potentially execute arbitrary commands with root privileges (local privilege escalation and persistence) via modification of a root-owned, world-writable BusyBox udhcpc DHCP event script, which is executed when a DHCP lease is obtained, renewed, or lost.

NVD Source

Technical Analysis

CVE-2026-29126 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

datacast2 products
sfx2100 firmwaresfx2100
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (2)

→
https://www.abdulmhsblog.com/posts/sfx2100-vulns/Exploit · Third Party Advisory
→
https://www.abdulmhsblog.com/posts/sfx2100-vulns/Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2026-29126
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-732
CISA KEVNo
EPSS (30d)0.01%
Affected1 vendor
PublishedMar 5, 2026

Related CVEs (CWE-732)

CVE-2026-9508
10.0
CVE-2026-32048
9.9
CVE-2026-21902
KEV9.8
CVE-2026-34352
9.8
CVE-2026-24834
9.3
CVE-2026-10591
8.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-29126 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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