critical
CVE-2025-67896
exim: Exim: Remote heap corruption vulnerability
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (medium).
Description
Exim before 4.99.1, with certain non-default rate-limit configurations, allows a remote heap-based buffer overflow because database records are cast directly to internal structures without validation.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| debian 14 | exim4 | 4.99-7 |
| rapidfort debian 12 | exim4 | 0:4.99-7 |
| rapidfort debian 13 | exim4 | 0:4.99-7 |
| rapidfort fedora 43 | exim, exim-clamav, exim-greylist and 3 more | 4.99.1-1.fc43 |
| rapidfort Oracle Linux 10 | exim, exim-clamav, exim-greylist and 3 more | 4.99.1-1.el10_2 |
| rapidfort Oracle Linux 9 | exim, exim-clamav, exim-greylist and 3 more | 4.99.1-1.el9 |
Show all 21 entries from 6 sources
| Source | Package | Fixed in |
|---|---|---|
| debian 14 | exim4 | 4.99-7 |
| rapidfort debian 12 | exim4 | 0:4.99-7 |
| rapidfort debian 13 | exim4 | 0:4.99-7 |
| rapidfort fedora 43 | exim | 4.99.1-1.fc43 |
| rapidfort fedora 43 | exim-clamav | 4.99.1-1.fc43 |
| rapidfort fedora 43 | exim-greylist | 4.99.1-1.fc43 |
| rapidfort fedora 43 | exim-mon | 4.99.1-1.fc43 |
| rapidfort fedora 43 | exim-mysql | 4.99.1-1.fc43 |
| rapidfort fedora 43 | exim-pgsql | 4.99.1-1.fc43 |
| rapidfort Oracle Linux 10 | exim | 4.99.1-1.el10_2 |
| rapidfort Oracle Linux 10 | exim-clamav | 4.99.1-1.el10_2 |
| rapidfort Oracle Linux 10 | exim-greylist | 4.99.1-1.el10_2 |
| rapidfort Oracle Linux 10 | exim-mon | 4.99.1-1.el10_2 |
| rapidfort Oracle Linux 10 | exim-mysql | 4.99.1-1.el10_2 |
| rapidfort Oracle Linux 10 | exim-pgsql | 4.99.1-1.el10_2 |
| rapidfort Oracle Linux 9 | exim | 4.99.1-1.el9 |
| rapidfort Oracle Linux 9 | exim-clamav | 4.99.1-1.el9 |
| rapidfort Oracle Linux 9 | exim-greylist | 4.99.1-1.el9 |
| rapidfort Oracle Linux 9 | exim-mon | 4.99.1-1.el9 |
| rapidfort Oracle Linux 9 | exim-mysql | 4.99.1-1.el9 |
| rapidfort Oracle Linux 9 | exim-pgsql | 4.99.1-1.el9 |
References
- http://www.openwall.com/lists/oss-security/2025/12/14/1
- http://www.openwall.com/lists/oss-security/2025/12/18/3
- https://access.redhat.com/security/cve/CVE-2025-67896
- https://exim.org/static/doc/security/
- https://exim.org/static/doc/security/EXIM-Security-2025-12-09.1/report.txt
- https://nvd.nist.gov/vuln/detail/CVE-2025-67896
- https://www.cve.org/CVERecord?id=CVE-2025-67896
- https://www.openwall.com/lists/oss-security/2025/12/11/2