Medium severity5.3NVD Advisory· Published May 30, 2026· Updated Jun 5, 2026

CVE-2026-48840

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Exim/Eximinferred3 versions
>=4.88,<4.99.4+ 2 more
- (no CPE)range: >=4.88,<4.99.4
- cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*range: >=4.88,<4.99.4
- (no CPE)range: <4.99.4

Patches

Vulnerability mechanics

References

www.openwall.com/lists/oss-security/2026/05/29/3nvdMailing ListMitigationThird Party Advisory
exim.org/static/doc/security/EXIM-Security-2026-05-19.1nvdVendor Advisory
www.openwall.com/lists/oss-security/2026/05/29/3nvdMailing ListMitigationThird Party Advisory
lists.debian.org/debian-lts-announce/2026/06/msg00004.htmlnvd

News mentions

No linked articles in our index yet.

cvss	0.345
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000