CVE-2026-44717

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.9% (57th 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
9.8EG
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).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 9.8Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

MCP Calculate Server is a mathematical calculation service based on MCP protocol and SymPy library. Prior to 0.1.1, the use of eval() to evaluate mathematical expressions without proper input sanitization leads to remote code execution. This vulnerability is fixed in 0.1.1.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100

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 (value × EchelonGraph’s weight)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation0.9% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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
0.9%
EPSS %ILE
57th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

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 none (CISA Vulnrichment) · Automatable yes (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)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

May 15, 2026

Last Modified

May 18, 2026

Advisory Details (1)

Auto-updated Oct 8, 2026
Fix named in the CVE record. Sources: github.
GitHub advisoryMentions a patch (unverified)

Prompt Injection to RCE · Advisory · 611711Dark/mcp_calculate_server · GitHub

https://github.com/611711Dark/mcp_calculate_server/security/advisories/GHSA-2mgq-7rfg-rwpj

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× 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 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 99 of 178 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 79 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-16 18:43 UTCEG score recompute
  2. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  3. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  4. 2026-10-15 15:43 UTCEG score recompute
  5. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  6. 2026-10-14 09:55 UTCEG score recompute
  7. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
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  10. 2026-10-12 16:05 UTCEG score recompute
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  14. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  15. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  16. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  17. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  19. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  20. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  21. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  22. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  23. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  24. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  25. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.9% · 56th percentile
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  1. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  2. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 40th percentile
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  6. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  7. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  8. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  9. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  10. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  12. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  21. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  22. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  24. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  25. 2026-08-23 17:28 UTCEG score recompute
  26. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  27. 2026-08-22 01:30 UTCEG score recompute
  28. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  29. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  30. 2026-08-20 19:24 UTCEG score recompute
  31. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  32. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  33. 2026-08-17 14:03 UTCEG score recompute
  34. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  35. 2026-08-17 10:16 UTCEG score recompute
  36. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  38. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  39. 2026-08-15 01:35 UTCEG score recompute
  40. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  41. 2026-08-14 02:19 UTCEG score recompute
  42. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  43. 2026-08-12 14:52 UTCEG score recompute
  44. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  45. 2026-08-11 14:00 UTCEG score recompute
  46. 2026-08-11 00:48 UTCEG score recompute
  47. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  48. 2026-08-09 17:19 UTCEG score recompute
  49. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  50. 2026-08-09 01:45 UTCEG score recompute
  51. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  52. 2026-08-07 18:04 UTCEG score recompute
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  54. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  55. 2026-08-05 21:31 UTCEG score recompute
  56. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.5% · 38th percentile
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  59. 2026-08-03 18:55 UTCEG score recompute
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  63. 2026-08-01 18:57 UTCEG score recompute
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  65. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.5% · 38th percentile
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  72. 2026-07-23 14:18 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  73. 2026-07-23 03:15 UTCEG score recompute
  74. 2026-07-22 14:08 UTCEPSS rescoreEPSS 0.5% · 38th percentile

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Frequently asked(5)

What is CVE-2026-44717?
CVE-2026-44717 is a critical-severity vulnerability; its CVE record was published on May 15, 2026. MCP Calculate Server is a mathematical calculation service based on MCP protocol and SymPy library. Prior to 0.1.1, the use of eval() to evaluate mathematical expressions without proper input sanitization leads to remote code execution. This vulnerability is fixed in 0.1.1.
When was the CVE record for CVE-2026-44717 published?
The CVE record for CVE-2026-44717 was published on May 15, 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 May 18, 2026; the record at its source may have been updated since.
Is CVE-2026-44717 actively exploited?
CVE-2026-44717 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (57th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-44717?
CVE-2026-44717 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-44717?
The CVE record for CVE-2026-44717 names the fix: "This vulnerability is fixed in 0.1.1."

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