CVE-2026-45747

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (34th percentile of EPSS-scored CVEs). 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
Elevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.16, the Lua TLS certificate information helper could dereference NULL certificate fields when a Lua script requested certificate information for TLS traffic where some certificate fields were absent. Crafted TLS traffic processed by a deployment using affected Lua TLS scripting could crash Suricata, resulting in denial of service. Version 7.0.16 contains a fix. As a workaround, avoid Lua scripts that call TLS certificate information helpers on untrusted traffic (TlsGetCertInfo function), or update scripts to handle missing certificate fields where possible.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100CISA SSVC

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 computed
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
34th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 10, 2026

Last Modified

September 28, 2026

Advisory Details (3)

Auto-updated Sep 10, 2026
Patch available. Sources: github.
generic

Security #6286: lua/tls: null dereference in GetCertInfo - Suricata - Open Information Security Foundation

https://redmine.openinfosecfoundation.org/issues/6286
generic

Suricata 8.0.5 and 7.0.16 released! - Announcements - Suricata

https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315
github Patch Available

lua/tls: null dereference in TlsGetCertInfo · Advisory · OISF/suricata · GitHub

https://github.com/OISF/suricata/security/advisories/GHSA-vfc5-9844-rmhv

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 46× 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.

  1. 2026-10-04 01:42 UTCEG score recompute
  2. 2026-10-03 14:25 UTCEPSS rescore
  3. 2026-10-03 01:48 UTCEG score recompute
  4. 2026-10-02 01:53 UTCEG score recompute
  5. 2026-10-01 19:50 UTCEPSS rescore
  6. 2026-10-01 01:54 UTCEG score recompute
  7. 2026-09-30 15:03 UTCEPSS rescore
  8. 2026-09-30 01:57 UTCEG score recompute
  9. 2026-09-29 06:47 UTCEG score recompute
  10. 2026-09-28 18:56 UTCEG score recompute
  11. 2026-09-27 20:47 UTCEG score recompute
  12. 2026-09-27 13:48 UTCEPSS rescore
  13. 2026-09-26 21:05 UTCEG score recompute
  14. 2026-09-26 15:58 UTCEPSS rescore
  15. 2026-09-26 09:13 UTCEG score recompute
  16. 2026-09-24 18:17 UTCEG score recompute
  17. 2026-09-23 18:06 UTCEG score recompute
  18. 2026-09-23 17:53 UTCEPSS rescore
  19. 2026-09-22 18:23 UTCEG score recompute
  20. 2026-09-22 06:32 UTCEG score recompute
  21. 2026-09-21 06:50 UTCEG score recompute
  22. 2026-09-20 20:15 UTCEPSS rescore
  23. 2026-09-19 19:17 UTCEG score recompute
  24. 2026-09-18 19:33 UTCEG score recompute
  25. 2026-09-18 19:28 UTCEPSS rescore
Show 21 more
  1. 2026-09-17 19:50 UTCEG score recompute
  2. 2026-09-17 19:31 UTCEPSS rescore
  3. 2026-09-16 18:20 UTCEG score recompute
  4. 2026-09-16 14:08 UTCEPSS rescore
  5. 2026-09-16 06:28 UTCEG score recompute
  6. 2026-09-16 05:15 UTCEPSS rescore
  7. 2026-09-15 06:45 UTCEG score recompute
  8. 2026-09-13 19:09 UTCEG score recompute
  9. 2026-09-13 16:47 UTCEPSS rescore
  10. 2026-09-12 19:26 UTCEG score recompute
  11. 2026-09-12 15:01 UTCEPSS rescore
  12. 2026-09-11 19:43 UTCEG score recompute
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-10 20:00 UTCEG score recompute
  15. 2026-09-10 17:20 UTCEG score recompute
  16. 2026-09-10 16:35 UTCEG score recompute
  17. 2026-09-10 16:21 UTCEG score recompute
  18. 2026-09-10 16:10 UTCEG score recompute
  19. 2026-09-10 15:21 UTCEG score recompute
  20. 2026-09-10 14:25 UTCEG score recompute
  21. 2026-09-10 14:24 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-45747?
CVE-2026-45747 is a high vulnerability published on September 10, 2026. Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.16, the Lua TLS certificate information helper could dereference NULL certificate fields when a Lua script requested certificate information for TLS traffic…
When was CVE-2026-45747 disclosed?
CVE-2026-45747 was first published on September 10, 2026, with the most recent update on September 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45747 actively exploited?
CVE-2026-45747 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (34th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-45747?
CVE-2026-45747 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-45747?
A fix for CVE-2026-45747 is available: update to the fixed version the vendor names in its advisory.

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