Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-6265-1 | exim4 security update |
Ubuntu USN |
USN-8228-1 | Exim vulnerabilities |
Fri, 01 May 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 01 May 2026 02:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Fri, 01 May 2026 02:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Thu, 30 Apr 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing characters are present (malformed UTF-8 header data). Information might be divulged within an error message produced during handling of an unrelated e-mail message. | |
| First Time appeared |
Exim
Exim exim |
|
| Weaknesses | CWE-125 | |
| CPEs | cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Exim
Exim exim |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-05-01T14:27:11.390Z
Reserved: 2026-04-14T00:00:00.000Z
Link: CVE-2026-40686
Updated: 2026-05-01T14:27:06.850Z
Status : Analyzed
Published: 2026-04-30T22:16:25.787
Modified: 2026-05-01T17:44:15.677
Link: CVE-2026-40686
No data.
OpenCVE Enrichment
Updated: 2026-04-30T22:30:02Z
Debian DSA
Ubuntu USN