CVE-2026-48840

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score

5.3 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N                                    

Vulnerability 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.

Vulnerability Details

Published Date

May 30, 2026

Last Modified

June 05, 2026

CWE ID

CWE-839

Source

NVD

Vendor

Exim

Product

Exim

External References

https://exim.org/static/doc/security/EXIM-Security-2026-05-19.1
https://www.openwall.com/lists/oss-security/2026/05/29/3

CVE-2026-48840

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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