Packages
- exim4 - Exim is a mail transport agent
Details
It was discovered that Exim incorrectly handled parsing malformed JSON
in message headers. A remote attacker could possibly use this issue to
execute arbitrary code. (CVE-2026-40685)
It was discovered that Exim incorrectly handled processing of UTF-8
trailing characters. A remote attacker could possibly use this issue to
obtain sensitive information. (CVE-2026-40686)
It was discovered that Exim incorrectly handled SPA authenticator input.
An authenticated user could possibly use this issue to execute arbitrary
code. (CVE-2026-40687)
It was discovered that Exim incorrectly handled parsing malformed JSON
in message headers. A remote attacker could possibly use this issue to
execute arbitrary code. (CVE-2026-40685)
It was discovered that Exim incorrectly handled processing of UTF-8
trailing characters. A remote attacker could possibly use this issue to
obtain sensitive information. (CVE-2026-40686)
It was discovered that Exim incorrectly handled SPA authenticator input.
An authenticated user could possibly use this issue to execute arbitrary
code. (CVE-2026-40687)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 26.04 LTS resolute | exim4 – 4.99.1-1ubuntu1.1 | ||
| exim4-base – 4.99.1-1ubuntu1.1 | |||
| eximon4 – 4.99.1-1ubuntu1.1 | |||
| 25.10 questing | exim4 – 4.98.2-1ubuntu2.1 | ||
| exim4-base – 4.98.2-1ubuntu2.1 | |||
| eximon4 – 4.98.2-1ubuntu2.1 | |||
| 24.04 LTS noble | exim4 – 4.97-4ubuntu4.4 | ||
| exim4-base – 4.97-4ubuntu4.4 | |||
| eximon4 – 4.97-4ubuntu4.4 | |||
| 22.04 LTS jammy | exim4 – 4.95-4ubuntu2.7 | ||
| exim4-base – 4.95-4ubuntu2.7 | |||
| eximon4 – 4.95-4ubuntu2.7 | |||
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