Search/CVE-2026-48840
● CVE — Medium

CVE-2026-48840

VendoreximProducteximDiscoveredMay 30, 2026UpdatedJul 22, 2026

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.

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CVSS v3.1
5.3 MEDIUM
EPSS
0.26%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 26, 2026
● 0.00pp
0.26% → 0.26% over 4 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityLOW
IntegrityNONE
AvailabilityNONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Connections
2 relationships
Timeline
disclosure → media coverage
May 30, 2026
Disclosure — published as a CVE record. · last revised by NVD Jul 22, 2026