Exploited CVEs / By vendor / Exim

Exim vulnerabilities actively exploited

5 Exim CVEs on the CISA Known Exploited Vulnerabilities catalog, newest first. Refreshed daily.

Every CVE below is confirmed exploited in the wild, not just theoretically severe. The newest addition is CVE-2010-4344 (Exim, added 2022-03-25). 1 of the 5 are used in ransomware campaigns. New CISA KEV entries appear here the day they are cataloged; the freshest across all vendors are on exploited this week.

5 exploited CVEs1 ransomware-linked

Ask your own AI about Exim exploited CVEs

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Exim: 3 exploited CVEs

CVEProductAdded to KEVSignals
CVE-2010-4344Exim2022-03-25CVSS 9.8, EPSS 72%
CVE-2010-4345Exim2022-03-25CVSS 7.8, EPSS 18%
CVE-2018-6789Exim2021-11-03ransomware, CVSS 9.8, EPSS 82%

Other Exim products

CVEProductAdded to KEVSignals
CVE-2019-16928Exim Internet Mailer2022-03-03CVSS 9.8, EPSS 42%
CVE-2019-10149Mail Transfer Agent (MTA)2022-01-10CVSS 9.8, EPSS 100%

Common questions about exploited Exim CVEs

Which Exim vulnerabilities are actively exploited?

As of July 2026, 5 Exim CVEs are on the CISA Known Exploited Vulnerabilities catalog, meaning exploitation in the wild is confirmed. The most-listed products are Exim (3). 1 are linked to ransomware campaigns.

What is the newest exploited Exim CVE?

CVE-2010-4344, affecting Exim, added to the CISA KEV catalog on 2022-03-25. This page refreshes daily, so the newest entry is always first in the table.

How urgent are these Exim CVEs?

KEV listing is the strongest fix-first signal there is: it means confirmed exploitation, not a prediction. Patch these ahead of higher-CVSS issues that nobody is exploiting. Check the vendor advisory (linked below) for fixed versions and workarounds.

Can I ask my own AI about exploited Exim CVEs?

Yes. This page includes a free copy-paste AI prompt carrying the newest Exim KEV entries, with CVSS, EPSS, and ransomware context, into Claude, ChatGPT, or Copilot. The data is refreshed daily.

Authoritative references

CISA Known Exploited Vulnerabilities CatalogNIST National Vulnerability DatabaseFIRST.org EPSS

All vendors, searchable with due dates and CSV export: the exploited-CVE tracker. Every vendor with a page: exploited by vendor.

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Lexicon: the terms on this page
CVE
Common Vulnerabilities and Exposures. A unique ID for one publicly known vulnerability, such as CVE-2025-1234.
KB
Microsoft Knowledge Base article. The identifier for a specific Microsoft update.
KEV
CISA Known Exploited Vulnerabilities. CVEs confirmed exploited in the wild. Fix these first.
CVSS
Common Vulnerability Scoring System. A standardized Severity score from 0 to 10.
EPSS
Exploit Prediction Scoring System. The probability a CVE will be exploited in the next 30 days.
MSRC
Microsoft Security Response Center. Microsoft's Patch Tuesday advisories and KB-to-CVE mapping.
NVD
National Vulnerability Database (NIST). Authoritative CVE metadata and CVSS scores.
Ransomware
The vulnerability is linked to known ransomware activity.
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