CVEvulnerability
CVE-2026-48840
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-05-30
- Last modified
- 2026-07-22
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-839
Description
Exim 4.88 before 4.99.4, in some proxy configurations, mishandles certain short payloads, leading to disclosure of uninitialized stack memory values to a client.
Affected configurations
• exim exim (>= 4.88 < 4.99.4)
Related
Weakness · CWE (1)
- CWE-839 Numeric Range Comparison Without Minimum Check weakness
References
- https://exim.org/static/doc/security/EXIM-Security-2026-05-19.1 Vendor Advisory
- https://www.openwall.com/lists/oss-security/2026/05/29/3 Mailing List, Mitigation, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2026/05/29/3 Mailing List, Mitigation, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2026/06/msg00004.html lists.debian.org