CVE-2026-73235

MEDIUMPre-NVD 6.16.1
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1% (1st 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
6.1EG
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: 0.1%CVSS: 6.1Exploit: None knownExposed 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, the Xerces SAX2 XMLReader constructed in src/Base/Reader.cpp by Base::XMLReader::XMLReader() parses attacker-controlled Document.xml from a crafted .FCStd archive without disabling default external entity resolution or external DTD loading. When Document::restore() opens the document, external entities can read local files through the file URI scheme or initiate server-side requests through the http URI scheme, and resolved content can flow through the characters() callback. This issue is fixed in version 1.1.2.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
27
EG Risk 27/100

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)
Severity61% × 45%
The EG Score, 6.1 of 10.
Exploitation0.1% × 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
0.1%
EPSS %ILE
1st
KEV
Not listed

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.

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

August 11, 2026

Last Modified

September 9, 2026

Advisory Details (6)

Auto-updated Aug 11, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
GitHub advisoryMentions a patch (unverified)

XXE file read and SSRF via external entity injection in Document.xml SAX parser · Advisory · FreeCAD/FreeCAD · GitHub

https://github.com/FreeCAD/FreeCAD/security/advisories/GHSA-cp6c-87x9-xf49
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 pull request

[Backport releases/FreeCAD-1-1] Base: Harden FCStd Reader against XXE

Fix merged in FreeCAD/FreeCAD PR #31280 on 2026-07-12 — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/pull/31280
GitHub pull request

Base: Harden FCStd Reader against XXE

Fix merged in FreeCAD/FreeCAD PR #31271 on 2026-07-12 — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/pull/31271
GitHub commit

commit d98eaf1f1944 (FreeCAD/FreeCAD)

Fix landed in FreeCAD/FreeCAD commit d98eaf1f1944 — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/commit/d98eaf1f194400d8a8886fe6780c54f5c68ea2c3
GitHub commit

commit 7d1b8f5806db (FreeCAD/FreeCAD)

Fix landed in FreeCAD/FreeCAD commit 7d1b8f5806db — awaiting tagged release

https://github.com/FreeCAD/FreeCAD/commit/7d1b8f5806db578db99feb348e55a6b0eaff7c73

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 12× in last 7d / 45× 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 97 of 102 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. 3 repeat rows among the latest 100 are merged into the row they repeat. The 5 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  2. 2026-10-12 15:41 UTCEG score recompute
  3. 2026-10-11 19:26 UTCEG score recompute
  4. 2026-10-11 16:42 UTCEG score recompute
  5. 2026-10-11 14:02 UTCEG score recompute
  6. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  10. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-10-06 17:36 UTCEG score recompute
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  15. 2026-10-03 20:27 UTCEG score recompute
  16. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  17. 2026-10-02 08:25 UTCEG score recompute
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  19. 2026-09-30 22:01 UTCEG score recompute
  20. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-09-29 07:22 UTCEG score recompute
  22. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  23. 2026-09-28 08:41 UTCEG score recompute
  24. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  25. 2026-09-27 10:00 UTCEG score recompute
Show 72 more
  1. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-09-25 04:44 UTCEG score recompute
  3. 2026-09-24 06:03 UTCEG score recompute
  4. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  5. 2026-09-23 07:22 UTCEG score recompute
  6. 2026-09-22 08:41 UTCEG score recompute
  7. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  8. 2026-09-21 09:59 UTCEG score recompute
  9. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-09-20 10:48 UTCEG score recompute
  11. 2026-09-19 12:06 UTCEG score recompute
  12. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-09-18 10:59 UTCEG score recompute
  14. 2026-09-17 12:17 UTCEG score recompute
  15. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  16. 2026-09-16 11:59 UTCEG score recompute
  17. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  18. 2026-09-15 13:18 UTCEG score recompute
  19. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  20. 2026-09-14 14:20 UTCEG score recompute
  21. 2026-09-12 16:57 UTCEG score recompute
  22. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-09-11 18:16 UTCEG score recompute
  24. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  25. 2026-09-10 19:34 UTCEG score recompute
  26. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  27. 2026-09-09 05:22 UTCEG score recompute
  28. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  29. 2026-09-08 00:14 UTCEG score recompute
  30. 2026-09-07 01:26 UTCEG score recompute
  31. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  32. 2026-09-06 01:24 UTCEG score recompute
  33. 2026-09-05 02:06 UTCEG score recompute
  34. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  35. 2026-09-03 04:37 UTCEG score recompute
  36. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  37. 2026-09-02 05:28 UTCEG score recompute
  38. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  39. 2026-09-01 06:33 UTCEG score recompute
  40. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  41. 2026-08-31 06:31 UTCEG score recompute
  42. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  43. 2026-08-30 07:41 UTCEG score recompute
  44. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  45. 2026-08-29 09:00 UTCEG score recompute
  46. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  47. 2026-08-28 02:54 UTCEG score recompute
  48. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  49. 2026-08-27 04:13 UTCEG score recompute
  50. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  51. 2026-08-26 05:21 UTCEG score recompute
  52. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  53. 2026-08-25 06:36 UTCEG score recompute
  54. 2026-08-23 09:12 UTCEG score recompute
  55. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  56. 2026-08-22 10:30 UTCEG score recompute
  57. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  58. 2026-08-21 11:49 UTCEG score recompute
  59. 2026-08-20 22:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-08-20 13:07 UTCEG score recompute
  61. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  62. 2026-08-17 16:48 UTCEG score recompute
  63. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  64. 2026-08-16 18:07 UTCEG score recompute
  65. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  66. 2026-08-16 02:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  67. 2026-08-15 19:26 UTCEG score recompute
  68. 2026-08-15 01:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  69. 2026-08-13 22:03 UTCEG score recompute
  70. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  71. 2026-08-12 23:22 UTCEG score recompute
  72. 2026-08-12 22:21 UTCEG score recompute

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-73235?
CVE-2026-73235 is a medium-severity vulnerability; its CVE record was published on August 11, 2026. FreeCAD is a free and open-source multiplatform 3D parametric modeler. Prior to 1.1.2, the Xerces SAX2 XMLReader constructed in src/Base/Reader.cpp by Base::XMLReader::XMLReader() parses attacker-controlled Document.xml from a crafted .FCStd archive without disabling default external entity…
When was the CVE record for CVE-2026-73235 published?
The CVE record for CVE-2026-73235 was published on August 11, 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-2026-73235 actively exploited?
CVE-2026-73235 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73235?
CVE-2026-73235 has a CVSS base score of 6.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73235?
A fix for CVE-2026-73235 is available: update to the fixed version the vendor names in its advisory.

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