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VulnerabilityPublished Updated

CVE-2025-14055: silabs.com Simplicity SDK, Gecko SDK · Integer Underflow

Affects silabs.com Simplicity SDK, Gecko SDKSource CVE Database V5

0

Not known to be exploited · CVSS 2.4 Low.

Data as of 26 Oct 2026, 11:07 UTC

CVSS 4.0 base score
2.4Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
silabs.comSimplicity SDK, Gecko SDKAffected
  • >=2025.12.0 <=2025.12.1
  • <=2025.6.2
Fixed in–

AI-suggested

Until an official fix is released, users should limit physical access to affected devices and monitor for updates from Silicon Labs regarding patches or mitigations.

Description

An integer underflow vulnerability in Silicon Labs Secure NCP host implementation allows a buffer overread via a specially crafted packet.

References

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