Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the stream.reassembly.depth value helps reduce the severity of the issue.
CVE-2024-23836
“—” beside the score: it is equal to NVD's CVSS score.
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 1.2% (67th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2024-21278 (ENISA EUVD)Source: ENISA EUVD
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5HIGHmedium confidence
- EG Risk
- 34EG Risk 34/100
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)Severity75% × 45%Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation1.2% × 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
- 1.2%
- EPSS %ILE
- 67th
- 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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.
- EG Severity
- 7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
- EG Likelihood
- 1.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). 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
February 26, 2024
Last Modified
December 19, 2024
Advisory Details (10)
Auto-updated Nov 11, 2026commit f9de1cca6182 (OISF/suricata)
Patch available: OISF/suricata suricata-7.0.3 (contains commit f9de1cca6182)
https://github.com/OISF/suricata/commit/f9de1cca6182e571f1c02387dca6e695e55608afcommit e7e28822f473 (OISF/suricata)
Patch available: OISF/suricata suricata-7.0.3 (contains commit e7e28822f473)
https://github.com/OISF/suricata/commit/e7e28822f473320658d6125f16ac3f0524baff01commit ce9b90326949 (OISF/suricata)
Patch available: OISF/suricata suricata-7.0.3 (contains commit ce9b90326949)
https://github.com/OISF/suricata/commit/ce9b90326949c94a46611d6394e28600ee5e8bd5commit cd035d59e3df (OISF/suricata)
Patch available: OISF/suricata suricata-7.0.3 (contains commit cd035d59e3df)
https://github.com/OISF/suricata/commit/cd035d59e3df157b606f4fe67324ea8e437be786commit b1549e930f64 (OISF/suricata)
Patch available: OISF/suricata suricata-6.0.17 (contains commit b1549e930f64)
https://github.com/OISF/suricata/commit/b1549e930f6426eeff43f12b672337cbcda566b8commit 97953998d2d6 (OISF/suricata)
Patch available: OISF/suricata suricata-7.0.3 (contains commit 97953998d2d6)
https://github.com/OISF/suricata/commit/97953998d2d60673ed6c30ddfb6a2d59b4230f97commit 8efaebe293e2 (OISF/suricata)
Patch available: OISF/suricata suricata-6.0.17 (contains commit 8efaebe293e2)
https://github.com/OISF/suricata/commit/8efaebe293e2a74c8e323fa85a6f5fadf82801bccommit 83c5567ea7b0 (OISF/suricata)
Patch available: OISF/suricata suricata-6.0.17 (contains commit 83c5567ea7b0)
https://github.com/OISF/suricata/commit/83c5567ea7b0b28376f57dcfee9c6301448c7bc7commit 2a2120ecf10c (OISF/suricata)
Patch available: OISF/suricata suricata-6.0.17 (contains commit 2a2120ecf10c)
https://github.com/OISF/suricata/commit/2a2120ecf10c5b5713ec2bf59469fe57f7b5b747commit 18841a58da71 (OISF/suricata)
Patch available: OISF/suricata suricata-6.0.17 (contains commit 18841a58da71)
https://github.com/OISF/suricata/commit/18841a58da71e735ddf4e52cbfa6989755ecbeb7Affected Packages
(3 across 3 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| suricata | 1:6.0.1-3 ... 1:8.0.6-1~bpo13+1 (75 versions) |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| suricata | — |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| suricata | — |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 30× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.
Showing the most recent 100 of 221 rows on record for this CVE, as 98 entries (2 repeats merged).
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 2 repeat rows among the latest 100 are merged into the row they repeat. The 121 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-13 16:46 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-12 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-11 16:34 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-11 15:50 UTCEchelonGraph re-scored
- 2026-11-10 16:38 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-09 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-08 16:35 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-07 16:35 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-06 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-05 16:33 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-04 16:32 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-04 11:32 UTCEchelonGraph re-scored
- 2026-11-03 16:42 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-02 16:40 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-11-01 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-10-31 16:30 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-10-30 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-10-29 16:30 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-10-28 16:29 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-10-28 07:12 UTCEchelonGraph re-scored
- 2026-10-27 16:29 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-10-26 16:29 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-10-25 17:17 UTCEchelonGraph re-scored
- 2026-10-25 16:30 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-10-24 16:30 UTCEPSS rescoreEPSS 1.2% · 67th percentile
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- 2026-10-23 16:29 UTCEPSS rescoreEPSS 1.2% · 67th percentile
- 2026-10-22 16:31 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-21 16:29 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-20 20:29 UTCEchelonGraph re-scored
- 2026-10-20 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-19 16:29 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-18 16:29 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-18 07:25 UTCEchelonGraph re-scored
- 2026-10-17 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-16 16:36 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-15 16:29 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-14 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-13 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-12 18:01 UTCEchelonGraph re-scored
- 2026-10-12 16:31 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-11 22:24 UTCOSV refresh
- 2026-10-11 21:26 UTCEchelonGraph re-scored
- 2026-10-11 16:19 UTCEchelonGraph re-scored
- 2026-10-11 13:45 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-10 19:58 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-09 20:05 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-08 17:07 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-07 23:46 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-06 15:15 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-05 17:41 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-04 23:20 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-03 14:23 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-10-01 19:48 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-09-30 16:58 UTCEchelonGraph re-scored
- 2026-09-30 15:01 UTCEPSS rescoreEPSS 1.2% · 66th percentile
- 2026-09-29 15:17 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-28 13:49 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-24 14:01 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-23 13:46 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-22 06:46 UTCOSV refresh
- 2026-09-20 20:14 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-16 14:06 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-16 05:11 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-15 03:08 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-13 16:45 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-12 14:59 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-11 14:51 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-11 09:34 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-08 21:58 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-07 15:59 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-06 13:46 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-05 15:26 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-09-04 13:58 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-04 05:05 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-03 04:29 UTCOSV refresh
- 2026-09-02 14:10 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-09-01 13:52 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-08-30 19:15 UTCEPSS rescoreEPSS 1.2% · 65th percentile
- 2026-08-30 01:20 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-28 21:39 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-27 14:23 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-26 14:44 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-25 13:47 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-23 00:17 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-21 23:47 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-20 22:53 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-19 17:02 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-18 13:46 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-17 13:45 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-16 17:56 UTCOSV refresh
- 2026-08-16 14:54 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-16 02:12 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-15 01:28 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-13 21:58 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-12 13:49 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-11 13:40 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-09 13:45 UTCEPSS rescoreEPSS 1.2% · 64th percentile
- 2026-08-08 16:35 UTCEPSS rescoreEPSS 1.2% · 64th percentile
Related CVEs(same product + same CWE)
Same product
10 shownDebian:11:suricata
Frequently asked(5)
What is CVE-2024-23836?
When was the CVE record for CVE-2024-23836 published?
Is CVE-2024-23836 actively exploited?
What is the CVSS score of CVE-2024-23836?
How do I remediate CVE-2024-23836?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-23836
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