CVE-2022-47986

Status: AnalyzedCritical (9.8)⚠ Active exploitation💥 Exploit

IBM Aspera Faspex 4.4.2 Patch Level 1 and earlier could allow a remote attacker to execute arbitrary code on the system, caused by a YAML deserialization flaw. By sending a specially crafted obsolete API call, an attacker could exploit this vulnerability to execute arbitrary code on the system. The obsolete API call was removed in Faspex 4.4.2 PL2. IBM X-Force ID: 243512.

CVSS

Version: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base score: 9.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 100%
Percentile among all scored CVEs: 100
Score date: 10/6/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

CISA KEV — actively exploited

Added to catalog: 2/21/2023
Remediation due date: 3/14/2023
Known ransomware use: Known

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · IBM Aspera Faspex 4.4.1 - YAML deserialization (RCE) (4/7/2023)
Nuclei template (automated mass detection) · IBM Aspera Faspex <=4.4.2 PL1 - Remote Code Execution
Proof of concept on GitHub (unverified) · List of proofs of concept on GitHub

⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1190 Exploit Public-Facing Applicationinitial access95 %
Primary impactT1059 Command and Scripting Interpreterexecution90 %
Secondary impactT1565.001 Stored Data Manipulationimpact75 %

AV:N/PR:N/UI:N indica explotación remota sin autenticación (T1190). La deserialización insegura de YAML permite ejecución arbitraria de código (T1059), confirmada por uso activo en ransomware (KEV).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account Management Vulnerability Scanning Restrict Web-Based Content Restrict File and Directory Permissions Remote Data Storage Network Segmentation

Affected technologies (1)

IBM — Aspera Faspex

CWEs

CWE-502

References

Raw JSON (NVD)

Show

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