CVE-2026-57228 Suricata - Denial of Service

Suricata 7.0.13 to 7.0.17 contains a buffer over-read caused by improper handling of quoted-printable escape sequences in SMTP MIME decoder, letting attackers trigger a crash via crafted SMTP traffic, exploit requires decode-quoted-printable MIME decoding enabled.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Not required
EPSS
0.42% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-125

Vendor fix

Upgrade to version 7.0.17 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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