Meta fairseq YAML parsing flaw allows code execution (ZDI-26-941)
Original title: ZDI-26-941: (0Day) Meta fairseq FConvModel YAML File Parsing Code Injection Remote Code Execution Vulnerability
Opening a malicious YAML file can trigger code injection in FConvModel; ZDI scores it 7.8.
ZDI published ZDI-26-941 as a zero-day affecting Meta fairseq. Unsafe parsing of a YAML file in FConvModel can inject code and execute it remotely if the user opens a malicious file. ZDI assigned CVSS 7.8. Versions, a fix, and a CVE are not stated.
Unconfirmed: Publication as a zero-day does not state active exploitation or a vendor fix.
- The bug is in fairseq FConvModel YAML file parsing.
- The user must open a malicious file.
- ZDI assigned CVSS 7.8 and marked it a zero-day.
- No patched release is named in the snippet.
Impact: Remote code execution via a malicious YAML file
| Product | Affected |
|---|---|
| Meta fairseq | — |
- ATT&CK
- T1204.002 Malicious File
- Vendors
- Meta
- Products
- fairseq
- Organizations
- Zero Day Initiative
From the original article
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Meta fairseq. User interaction is required to exploit this vulnerability in that the target must open a malicious file. The ZDI has assigned a CVSS rating of 7.
zerodayinitiative.com
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