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HIGH

CVE-2026-94054

CVSS v3

7

HIGH

EPSS Score

0.3 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write.

Technical details

Published
2026-09-19
Last Modified
2026-09-19

Frequently asked questions

What is CVE-2026-94054?

Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write.

Is CVE-2026-94054 actively exploited?

Active exploitation of CVE-2026-94054 has not been confirmed. Its EPSS score was 0.3% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-94054?

CVE-2026-94054 has a CVSS v3 base score of 7 (HIGH severity).

Is CVE-2026-94054 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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