Live › vulnerability › CVE-2019-16928
Go to dashboardExim, a widely used mail transfer agent, has an out-of-bounds write in its EHLO/string handling that lets a remote sender write past a buffer. An attacker who can reach the SMTP port can run code on the mail server, and CISA lists it as actively exploited.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply updates per vendor instructions.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Exim Exim Internet Mailer | vendor | – | – |
Upgrade Exim to a release that includes the vendor fix for CVE-2019-16928, following the vendor instructions named in the CISA entry.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in string_vformat in string.c involving a long EHLO command.
This page as .md · .json · in your agent: get_signal("CVE-2019-16928")
CISA KEV catalog, Creative Commons 0 · EPSS scores by FIRST, used with attribution · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.