CVE-2024-39915

CRITICALNVD 9.99.9
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.9 under NVD CVSS v3. EPSS exploit probability: 0.6% (45th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Elevated
9.9EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.9Exploit: No code on recordExposed services: Not assessed

The CVE record names the fixed release — apply it.

Thruk is a multibackend monitoring webinterface for Naemon, Nagios, Icinga and Shinken using the Livestatus API. This authenticated RCE in Thruk allows authorized users with network access to inject arbitrary commands via the URL parameter during PDF report generation. The Thruk web application does not properly process the url parameter when generating a PDF report. An authorized attacker with access to the reporting functionality could inject arbitrary commands that would be executed when the script /script/html2pdf.sh is called. The vulnerability can be exploited by an authorized user with network access. This issue has been addressed in version 3.16. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS v3
9.9
EG Score
9.9CRITICALmedium confidence
EG Risk
61
EG Risk 61/100

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)
Severity99% × 45%
Impact severity (EG Severity): CVSS 9.9 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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: The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
45th
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 (9.9): severity, escalated by confirmed exploitation. This CVE's 9.9 is its impact severity (EG Severity), not escalated.

EG Severity
9.9 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-22). 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 low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

The CVE record names the fixed release. 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 no (CISA Vulnrichment) · Technical impact total (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)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (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

July 15, 2024

Last Modified

April 15, 2026

Advisory Details (2)

Auto-updated Oct 20, 2026
🔬 Proof of concept available. Fix named in the CVE record. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)🟡 PoC Available

K-Thruk-2023-001 Authenticated RCE in Thruk 3.13 · Advisory · sni/thruk · GitHub

https://github.com/sni/Thruk/security/advisories/GHSA-r7gx-h738-4w6f
GitHub commit

commit 7e7eb251e767 (sni/Thruk)

Fix landed in sni/Thruk commit 7e7eb251e767 — awaiting tagged release

https://github.com/sni/Thruk/commit/7e7eb251e76718a07639c4781f0d959d817f173b

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 43× 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.

Showing the most recent 95 of 228 refreshes on record for this CVE.

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. 5 repeat rows among the latest 100 are merged into the row they repeat. The 133 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 12:03 UTCEG score recompute
  2. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  3. 2026-10-22 13:35 UTCEG score recompute
  4. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  5. 2026-10-21 14:54 UTCEG score recompute
  6. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  7. 2026-10-19 17:41 UTCEG score recompute
  8. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  9. 2026-10-18 19:13 UTCEG score recompute
  10. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  11. 2026-10-18 07:08 UTCEG score recompute
  12. 2026-10-17 20:47 UTCEG score recompute
  13. 2026-10-17 16:31 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  14. 2026-10-16 22:20 UTCEG score recompute
  15. 2026-10-16 16:36 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  16. 2026-10-15 18:58 UTCEG score recompute
  17. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  18. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  19. 2026-10-14 12:44 UTCEG score recompute
  20. 2026-10-13 16:30 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  21. 2026-10-12 17:49 UTCEG score recompute
  22. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  23. 2026-10-11 21:14 UTCEG score recompute
  24. 2026-10-11 16:06 UTCEG score recompute
  25. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.6% · 44th percentile
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  1. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  2. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  3. 2026-10-08 17:07 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  4. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  5. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  6. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  7. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  8. 2026-10-04 10:08 UTCOSV refresh
  9. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  10. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  11. 2026-09-30 19:49 UTCEG score recompute
  12. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  13. 2026-09-29 15:17 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  14. 2026-09-28 13:49 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  15. 2026-09-27 13:44 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  16. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  17. 2026-09-26 00:23 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  18. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  19. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  20. 2026-09-22 14:46 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  21. 2026-09-21 20:32 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  22. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  23. 2026-09-19 15:40 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  24. 2026-09-18 19:26 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  25. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  26. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  27. 2026-09-15 00:14 UTCOSV refresh
  28. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  29. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  30. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  31. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  32. 2026-09-08 21:58 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  33. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  34. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  35. 2026-09-05 15:26 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  36. 2026-09-04 13:59 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  37. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  38. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  39. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  40. 2026-09-01 04:37 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  41. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  42. 2026-08-30 01:20 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  43. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  44. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  45. 2026-08-26 23:39 UTCOSV refresh
  46. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  47. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  48. 2026-08-24 14:15 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  49. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  50. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  51. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  52. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  53. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
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  55. 2026-08-16 14:54 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
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  57. 2026-08-15 01:28 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  58. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  59. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  60. 2026-08-11 13:40 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  61. 2026-08-10 23:58 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
  62. 2026-08-10 13:40 UTCOSV refresh
  63. 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2024-39915?
CVE-2024-39915 is a critical-severity vulnerability; its CVE record was published on July 15, 2024. Thruk is a multibackend monitoring webinterface for Naemon, Nagios, Icinga and Shinken using the Livestatus API. This authenticated RCE in Thruk allows authorized users with network access to inject arbitrary commands via the URL parameter during PDF report generation. The Thruk web application…
When was the CVE record for CVE-2024-39915 published?
The CVE record for CVE-2024-39915 was published on July 15, 2024. 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 April 15, 2026; the record at its source may have been updated since.
Is CVE-2024-39915 actively exploited?
CVE-2024-39915 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-39915?
CVE-2024-39915 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2024-39915?
The CVE record for CVE-2024-39915 names the fix: "This issue has been addressed in version 3.16."

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