CVE-2026-34789

HIGHPre-NVD 7.07.0
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 7.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (9th 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
Elevated

Also known asEUVD-2026-60454 (ENISA EUVD)Source: ENISA EUVD

7.0EG
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: 0.2%CVSS: 7.0Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, src/App/PropertyPythonObject.cpp in PropertyPythonObject::Restore() passes the attacker-controlled module attribute from serialized PropertyPythonObject XML directly to PyImport_ImportModule() while restoring a crafted FCStd document, which executes module-level Python code, and the legacy pickle branch also imports an attacker-controlled module and invokes its class constructor through PyObject_CallObject(). This issue is fixed in version 1.1.2.

CVSS v3
7.0
EG Score
7.0HIGHmedium confidence
EG Risk
48
EG Risk 48/100

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)
Severity70% × 45%
Impact severity (EG Severity): CVSS 7.0 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: 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
0.2%
EPSS %ILE
9th
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 (7.0): severity, escalated by confirmed exploitation. This CVE's 7.0 is its impact severity (EG Severity), not escalated.

EG Severity
7.0 HIGHCVSS-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 2026-11-07). 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, and whom BOD 26-04 binds: 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.

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 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.

The score's inputs: 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

August 17, 2026

Last Modified

September 9, 2026

Advisory Details (5)

Auto-updated Aug 17, 2026
Patch available. Sources: github_commit, github_release, github.
GitHub release Patch Available

FreeCAD 1.1.2

Patch available: FreeCAD/FreeCAD 1.1.2

https://github.com/FreeCAD/FreeCAD/releases/tag/1.1.2
GitHub commit

commit e2dc6c817267 (FreeCAD/FreeCAD)

Fix landed in FreeCAD/FreeCAD commit e2dc6c817267 — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/commit/e2dc6c8172673642c6856b8b3a5a6accefb18279
GitHub commit

commit 983037f3003d (FreeCAD/FreeCAD)

Fix landed in FreeCAD/FreeCAD commit 983037f3003d — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/commit/983037f3003dc31f48db36705b86fb3fbe026295
GitHub commit

commit 81b73925ce22 (FreeCAD/FreeCAD)

Fix landed in FreeCAD/FreeCAD commit 81b73925ce22 — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/commit/81b73925ce22610542367301d8eff4259eb9596e
GitHub advisoryMentions a patch (unverified)

Arbitrary code execution via unsandboxed PyImport_ImportModule in PropertyPythonObject::Restore · Advisory · FreeCAD/FreeCAD · GitHub

https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-493w-pp4h-h77v

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
freecad0.20.2+dfsg1-4
  • every version up to 0.20.2+dfsg1-4+deb12u1: fixed in 0.20.2+dfsg1-4+deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
freecad1.0.0+dfsg-8, 1.0.0+dfsg-8+deb13u1, 1.0.0+dfsg-8+deb13u2
  • every version up to 1.0.0+dfsg-8+deb13u3: fixed in 1.0.0+dfsg-8+deb13u3
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
freecad1.0.0+dfsg-8 ... 1.1.1+dfsg-3 (16 versions)
  • every version up to 1.1.3+dfsg-1: fixed in 1.1.3+dfsg-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 29× 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 138 rows on record for this CVE, as 99 entries (1 repeat 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 38 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:52 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
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  6. 2026-11-08 16:39 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-11-07 21:17 UTCEchelonGraph re-scored
  8. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  9. 2026-11-06 16:37 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  10. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  12. 2026-11-03 16:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
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  14. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  15. 2026-10-31 19:21 UTCEchelonGraph re-scored
  16. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  17. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
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  19. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  20. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  21. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  22. 2026-10-25 14:33 UTCEchelonGraph re-scored
  23. 2026-10-24 17:26 UTCEchelonGraph re-scored
  24. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
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  1. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  4. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  5. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-18 03:45 UTCEchelonGraph re-scored
  7. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  8. 2026-10-17 15:29 UTCEchelonGraph re-scored
  9. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-10-12 16:12 UTCEchelonGraph re-scored
  15. 2026-10-11 19:54 UTCEchelonGraph re-scored
  16. 2026-10-11 17:07 UTCEchelonGraph re-scored
  17. 2026-10-11 14:34 UTCEchelonGraph re-scored
  18. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  19. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
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  22. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  23. 2026-10-06 21:44 UTCEchelonGraph re-scored
  24. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-10-06 09:01 UTCEchelonGraph re-scored
  26. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  27. 2026-10-05 11:51 UTCEchelonGraph re-scored
  28. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  29. 2026-10-03 17:46 UTCEchelonGraph re-scored
  30. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  31. 2026-10-02 01:33 UTCEchelonGraph re-scored
  32. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  33. 2026-09-30 22:35 UTCEchelonGraph re-scored
  34. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  35. 2026-09-30 09:58 UTCEchelonGraph re-scored
  36. 2026-09-28 23:33 UTCEchelonGraph re-scored
  37. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  38. 2026-09-27 21:38 UTCEchelonGraph re-scored
  39. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  40. 2026-09-27 08:05 UTCEchelonGraph re-scored
  41. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  42. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  43. 2026-09-25 02:00 UTCEchelonGraph re-scored
  44. 2026-09-23 21:40 UTCEchelonGraph re-scored
  45. 2026-09-22 20:39 UTCEchelonGraph re-scored
  46. 2026-09-22 07:09 UTCEchelonGraph re-scored
  47. 2026-09-21 04:11 UTCEchelonGraph re-scored
  48. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  49. 2026-09-20 03:09 UTCEchelonGraph re-scored
  50. 2026-09-19 01:19 UTCEchelonGraph re-scored
  51. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  52. 2026-09-18 00:18 UTCEchelonGraph re-scored
  53. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  54. 2026-09-16 23:05 UTCEchelonGraph re-scored
  55. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 9th percentile
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  57. 2026-09-15 15:21 UTCEchelonGraph re-scored
  58. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  59. 2026-09-14 01:48 UTCEchelonGraph re-scored
  60. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  61. 2026-09-13 00:47 UTCEchelonGraph re-scored
  62. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  63. 2026-09-11 23:45 UTCEchelonGraph re-scored
  64. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  65. 2026-09-11 11:04 UTCEchelonGraph re-scored
  66. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  67. 2026-09-10 09:58 UTCEchelonGraph re-scored
  68. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
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  71. 2026-09-07 18:07 UTCEchelonGraph re-scored
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  73. 2026-09-06 17:04 UTCEchelonGraph re-scored
  74. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile

Frequently asked(5)

What is CVE-2026-34789?
CVE-2026-34789 is a high-severity vulnerability; its CVE record was published on August 17, 2026. FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, src/App/PropertyPythonObject.cpp in PropertyPythonObject::Restore() passes the attacker-controlled module attribute from serialized PropertyPythonObject XML directly to PyImport_ImportModule() while restoring a…
When was the CVE record for CVE-2026-34789 published?
The CVE record for CVE-2026-34789 was published on August 17, 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 9, 2026; the record at its source may have been updated since.
Is CVE-2026-34789 actively exploited?
CVE-2026-34789 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-34789?
CVE-2026-34789 has a CVSS base score of 7.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-34789?
A fix for CVE-2026-34789 is available: update to the fixed version the vendor names in its advisory.

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