CVE-2018-18956
CVSS v3
7.5
HIGH
EPSS Score
2.8 %
exploit probability, as of 2026-10-19
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
- CVE-2018-18956 Red Hat Product Security
suricata: Segmentation fault in the ProcessMimeEntity function
Description
The ProcessMimeEntity function in util-decode-mime.c in Suricata 4.x before 4.0.6 allows remote attackers to cause a denial of service (segfault and daemon crash) via crafted input to the SMTP parser, as exploited in the wild in November 2018.
Technical details
- Published
- 2018-11-05
Frequently asked questions
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