CVE-2026-45761

LOWPre-NVD 3.33.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This low-severity CVE scores 3.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (7th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-75755 (ENISA EUVD)Source: ENISA EUVD

3.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 3.3Exploit: None knownExposed 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 versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached during rule parsing/loading rather than by network traffic alone. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, preprocess rules to check that frames are all lowercase and/or only load trusted rulesets.

CVSS v3
3.3
EG Score
3.3LOWmedium confidence
EG Risk
15
EG Risk 15/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity33% × 45%
Impact severity (EG Severity): CVSS 3.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (3.3): severity, escalated by confirmed exploitation. This CVE's 3.3 is its impact severity (EG Severity), not escalated.

EG Severity
3.3 LOWCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 10, 2026

Last Modified

September 16, 2026

References (3)

Affected Packages

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
suricata1:7.0.10-1 ... 1:8.0.7-2~exp1 (29 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
suricata1:7.0.10-1 ... 1:8.0.5-1~bpo13+1 (19 versions)
  • every version up to 1:8.0.5-1: fixed in 1:8.0.5-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 39× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  2. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  3. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  4. 2026-10-29 17:43 UTCEG score recompute
  5. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  6. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  7. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  8. 2026-10-27 04:55 UTCOSV refresh
  9. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  10. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  11. 2026-10-25 14:26 UTCEG score recompute
  12. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  13. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  14. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  15. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  16. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  17. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  18. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-10-18 03:37 UTCEG score recompute
  20. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-10-12 16:04 UTCEG score recompute
Show 39 more
  1. 2026-10-11 19:46 UTCEG score recompute
  2. 2026-10-11 17:00 UTCEG score recompute
  3. 2026-10-11 14:26 UTCEG score recompute
  4. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  7. 2026-10-08 23:44 UTCEG score recompute
  8. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  9. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  12. 2026-10-05 09:21 UTCEG score recompute
  13. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-10-02 07:17 UTCEG score recompute
  16. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-09-29 05:16 UTCEG score recompute
  19. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-09-26 03:14 UTCEG score recompute
  22. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  23. 2026-09-23 01:12 UTCEG score recompute
  24. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-09-19 23:10 UTCEG score recompute
  26. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  27. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  28. 2026-09-16 21:08 UTCEG score recompute
  29. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  30. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  31. 2026-09-15 16:35 UTCEG score recompute
  32. 2026-09-15 15:25 UTCEG score recompute
  33. 2026-09-13 23:40 UTCEG score recompute
  34. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  35. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  36. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  37. 2026-09-10 21:19 UTCEG score recompute
  38. 2026-09-10 21:05 UTCEG score recomputeFirst assessed: 3.3 LOW
  39. 2026-09-10 21:05 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-45761?
CVE-2026-45761 is a low-severity vulnerability; its CVE record was published on September 10, 2026. Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a crafted rule using mixed-case frame syntax could trigger a heap buffer overflow while Suricata is loading signatures. The issue is reached…
When was the CVE record for CVE-2026-45761 published?
The CVE record for CVE-2026-45761 was published on September 10, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 16, 2026; the record at its source may have been updated since.
Is CVE-2026-45761 actively exploited?
CVE-2026-45761 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-45761?
CVE-2026-45761 has a CVSS base score of 3.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-45761?
A fix for CVE-2026-45761 is available: update to the fixed version the vendor names in its advisory.

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