CVE-2019-16928VulnerabilityPublished 03/03/2022Updated 10/24/2026

CVE-2019-16928: Exim Out-of-bounds Write Vulnerability

Affects Exim Exim Internet MailerSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 03/03/2022
KEV deadline: 03/17/2022
EPSS: 41.6% chance of exploitation in 30 days – higher than 98% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2019-16928 (opens in a new tab)

Description

CVE-2019-16928 is an out-of-bounds write vulnerability in the Exim Internet Mailer that can lead to remote code execution. This vulnerability has been exploited in the wild, indicating active threat usage. No specific affected versions or patch information is provided in the available data.

Summary

Exim contains a vulnerability identified as CVE-2019-16928, characterized by an out-of-bounds write (CWE-787). This flaw allows attackers to execute arbitrary code remotely by exploiting improper memory handling within the mailer software. The vulnerability has been confirmed to be exploited in the wild, increasing its risk profile. However, no explicit details on affected versions or remediation status are provided in the input data.

Impact

Successful exploitation of this vulnerability can result in remote code execution, potentially allowing attackers to take control of the affected system running Exim. Given that exploitation in the wild is known, this represents a significant security risk to systems using vulnerable versions of Exim.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until official fixes are confirmed, organizations should monitor vendor communications and apply updates promptly once available. No vendor advisory or patch links are provided in the current data.

Weaknesses

CWE-787Out-of-bounds Write (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 10:41:20 UTC

Weaknesses

References

Related threats