CVE-2026-75421
MediumCVSS 4.0Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
Stack-buffer-underflow vulnerability in the IOFile::getLine() function in aria2 <=1.37.0.
Risk Assessment
An attacker could exploit this vulnerability to cause a program crash or potentially execute arbitrary code, potentially leading to system compromise.
Recommendation
Update aria2 to the latest available version that includes a fix for this vulnerability.
Other vulnerabilities in aria2
See all- CVE-2026-71832Medium
Aria2 version 1.37.0 and below is affected by a Divide By Zero issue in src/bittorrent_helper.cc, which allows a remote malicious user to cause a Denial of Service.
- CVE-2026-8367Medium
aria2c accepts a server certificate with incorrect Extended Key Usage (EKU). If the attackers compromise a certificate (with the associated private key) issued for a different purpose, they may be able to reuse it for TLS server authentication.
Original NVD description (English source)
aria2 <=1.37.0 has a stack-buffer-underflow vulnerability in the IOFile::getLine() function.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS