Linux · 
Ubuntu · Package update · June 24, 2026
Ubuntu · Package update · June 24, 2026exim4-daemon-heavy 4.93-13ubuntu1.12+esm1: exim4-daemon-heavy 4.93-13ubuntu1.12+esm1 for Ubuntu 20.04.3 LTS (focal)
exim4-daemon-heavy 4.93-13ubuntu1.12+esm1, released June 24, 2026, fixes 5 CVEs in exim4-daemon-heavy. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.
UrgentUnsupported product
CVEs closed
5
2 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0127
70th percentile
Priority of the 5 CVEs
Patch now 0
Urgent 2
High 1
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| exim4-daemon-heavy | Ubuntu 20.04.3 LTS (focal) | 4.93-13ubuntu1.12+esm1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-45185 | exim4: Exim before 4.99.3, in certain GnuTLS configurations, has a remotely reachable use-after-free in the BDAT body parsin... | 9.8 | 0.0127 | None reported |
| Urgent | CVE-2026-40687 | exim4: In Exim before 4.99.2, when the SPA authentication driver is used with an adversarial SPA resource, there can be an o... | 9.1 | 0.0037 | None reported |
| High | CVE-2026-40685 | exim4-daemon-heavy: In Exim before 4.99.2, when JSON lookup is enabled, an out-of-bounds heap write can occur when a JSON operator encoun... | 9.8 | 0.0032 | None reported |
| Routine | CVE-2026-48840 | exim4: Exim 4.88 before 4.99.4, in some proxy configurations, mishandles certain short payloads, leading to disclosure of un... | 5.3 | 0.0026 | None reported |
| Routine | CVE-2026-40686 | exim4: In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing charac... | 5.3 | 0.0025 | None reported |
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