Out-of-Bounds Read Vulnerability in rxi fe Software
CVE-2026-4012

4.8MEDIUM

Key Information:

Vendor

Rxi

Status
Fe
Vendor
CVE Published:
12 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4012?

An out-of-bounds read vulnerability exists in the rxi fe software affecting the function read_ located in the src/fe.c file. This vulnerability arises from improper input handling, allowing attackers who have local access to manipulate the input and potentially access data outside the allocated memory bounds. The exploit has already been disclosed publicly, although specifics on the affected versions remain unclear due to the project's rolling release model. Despite notification of the issue, the vendor has not yet provided a response.

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Affected Version(s)

fe ed4cda96bd582cbb08520964ba627efb40f3dd91

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-4012 - Proof of Concept

References

https://vuldb.com/?id.350534
vdb-entrytechnical-description
https://vuldb.com/?ctiid.350534
signaturepermissions-required
https://vuldb.com/?submit.769774
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Oneafter (VulDB User)
JSON
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