Security Bulletin:Multiple vulnerabilities in netty-codec-smtp may affect IBM Infosphere Change Data Capture (CVE-2026-93563, CVE-2026-93576)

Summary Multiple security vulnerabilities have been identified in netty-codec-smtp, Netty/Codec/SMTP. netty-codec-smtp is used by IBM Infosphere Change Data Capture. IBM has addressed these vulnerabilities. Refer to the "Remediation/Fixes" section below for remediation details. Vulnerability...

Linux Distros Unpatched Vulnerability : CVE-2026-93563

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by...

SUSE CVE-2026-93563

A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

DEBIAN-CVE-2026-93563

A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

CVE-2026-93563

A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

UBUNTU-CVE-2026-93563

A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

CVE-2026-93563

A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

CVE-2026-93563

A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

CVE-2026-93563

CVE-2026-93563 affects Netty's netty-codec-smtp component, specifically the SmtpResponseDecoder class. The root cause is unbounded multi-line response accumulation , which allows a remote attacker to trigger a memory-exhaustion denial of service over the network without authentication or user int...

EUVD-2026-82873

A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

CVE-2026-93563 Io.netty/netty-codec-smtp: netty: unbounded multi-line response accumulation in smtpresponsedecoder leads to memory-exhaustion dos

A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

CVE-2026-93563 Io.netty/netty-codec-smtp: netty: unbounded multi-line response accumulation in smtpresponsedecoder leads to memory-exhaustion dos

A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

CVE-2026-93563

A flaw was found in Netty's "SmtpResponseDecoder" component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

CVE-2026-93563

A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

CVE-2026-93563: Undefined Security Weakness

A flaw was found in Netty's SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, could exploit this by sending a specially crafted, unbounded multi-line SMTP response without a terminator. This vulnerability leads to unbounded memory...

PT-2026-95355

Name of the Vulnerable Software and Affected Versions Netty affected versions not specified Description A flaw exists in the SmtpResponseDecoder component. A remote attacker, acting as a malicious or man-in-the-middle MITM SMTP server, can send a specially crafted, unbounded multi-line SMTP...