Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the DHCP parser in rust/src/dhcp/dhcp.rs creates stateless transactions without recording their packet direction with AppLayerTxData::for_direction(), so a sensor that observes only one direction cannot mark the unseen direction inspected or free completed transactions. The RDP parser in rust/src/rdp/rdp.rs has the same direction-state defect. The per-flow transaction list can grow without bound and cleanup repeatedly scans it, causing increasing CPU and memory consumption and eventual denial of service. This issue is fixed in version 8.0.6.
CVE-2026-57224
MEDIUMPre-NVD 6.56.5—Trending — 3 sources updated this week
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 66% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.5
- EG Score
- 6.5(medium)
- EG Risk
- 34(Track)EG Risk 34/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity65% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 34%
- KEV
- Not listed
Published
September 18, 2026
Last Modified
September 18, 2026
Advisory Details (8)
Auto-updated Sep 18, 2026Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available
8.0.6
Patch available: OISF/suricata suricata-8.0.6
https://github.com/OISF/suricata/releases/tag/suricata-8.0.6github_commit Patch Available
commit ef035c760329 (OISF/suricata)
Patch available: OISF/suricata suricata-8.0.6 (contains commit ef035c760329)
https://github.com/OISF/suricata/commit/ef035c7603293a10c5ad087e3d20b05f75236144github_commit Patch Available
commit bac8a69ca48c (OISF/suricata)
Patch available: OISF/suricata suricata-8.0.6 (contains commit bac8a69ca48c)
https://github.com/OISF/suricata/commit/bac8a69ca48c14582d39a244a87edad44751ebe1github_commit
commit 5af13e3eb06b (OISF/suricata)
Fix landed in OISF/suricata commit 5af13e3eb06b — awaiting tagged release
https://github.com/OISF/suricata/commit/5af13e3eb06be0387da8703b611c5ce932245c59github_commit
commit 3f86c56c8003 (OISF/suricata)
Fix landed in OISF/suricata commit 3f86c56c8003 — awaiting tagged release
https://github.com/OISF/suricata/commit/3f86c56c800392ede5cfaf7a944a431fd8445c55github_pr
next/1410/20260626/v1
Fix merged in OISF/suricata PR #15740 on 2026-06-27 — awaiting tagged release
https://github.com/OISF/suricata/pull/15740github Patch Available
dhcp/rdp: unbounded transactions in unidirectional traffic can lead to resource exhaustion · Advisory · OISF/suricata · GitHub
https://github.com/OISF/suricata/security/advisories/GHSA-m2vc-g65c-ph7mWeakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 5× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-20 20:16 UTCEPSS rescore
- 2026-09-19 20:23 UTCEG score recompute
- 2026-09-18 20:30 UTCEG score recompute
- 2026-09-18 20:10 UTCEG score recompute
- 2026-09-18 20:09 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-57224?
CVE-2026-57224 is a medium vulnerability published on September 18, 2026. Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the DHCP parser in rust/src/dhcp/dhcp.rs creates stateless transactions without recording their packet direction with AppLayerTxData::for_direction(), so a…
When was CVE-2026-57224 disclosed?
CVE-2026-57224 was first published in the National Vulnerability Database on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57224 actively exploited?
CVE-2026-57224 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 65.6% of all scored CVEs.
What is the CVSS score of CVE-2026-57224?
CVE-2026-57224 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-57224?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57224, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-57224
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