CVE-2026-5720 - miniupnpd Integer Underflow SOAPAction Header Parsing
CVE ID :CVE-2026-5720
Published : April 17, 2026, 10:16 p.m. | 1 hour, 54 minutes ago
Description :miniupnpd contains an integer underflow vulnerability in SOAPAction header parsing that allows remote attackers to cause a denial of service or information disclosure by sending a malformed SOAPAction header with a single quote. Attackers can trigger an out-of-bounds memory read by exploiting improper length validation in ParseHttpHeaders(), where the parsed length underflows to a large unsigned value when passed to memchr(), causing the process to scan memory far beyond the allocated HTTP request buffer.
Severity: 7.1 | HIGH
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Published : April 17, 2026, 10:16 p.m. | 1 hour, 54 minutes ago
Description :miniupnpd contains an integer underflow vulnerability in SOAPAction header parsing that allows remote attackers to cause a denial of service or information disclosure by sending a malformed SOAPAction header with a single quote. Attackers can trigger an out-of-bounds memory read by exploiting improper length validation in ParseHttpHeaders(), where the parsed length underflows to a large unsigned value when passed to memchr(), causing the process to scan memory far beyond the allocated HTTP request buffer.
Severity: 7.1 | HIGH
Visit the link for more details, such as CVSS details, affected products, timeline, and more...