CVE-2026-57228
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring…
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 7.0.13 until 7.0.17, the SMTP MIME quoted-printable decoder in src/util-decode-mime.c can read one byte past a heap buffer when a quoted-printable escape sequence is split across traffic chunks and the following chunk contains exactly one byte. Crafted SMTP traffic can trigger the out-of-bounds read and crash Suricata when decode-quoted-printable MIME decoding is enabled. This issue is fixed in version 7.0.17.
- Vendor
- oisf
- Product
- suricata
- CVSS 3.1
- 9.1 (critical), scored by NVD (primary)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- CVSS 3.1
- 8.2 (high), scored by security-advisories@github.comCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- CWE
- CWE-125
- Published
- 2026-09-18
- NVD modified
- 2026-09-29
- NVD status
- Analyzed
Not in the CISA KEV catalogue at the last update.
EPSS
0.42% chance of exploitation in the next 30 days (percentile 35th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
References
- github.com (Patch)
- github.com (Release Notes)
- github.com (Mitigation, Vendor Advisory)
Data last updated 18 Oct 2026. Sources: NVD API 2.0, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.