CVE-2026-102729

MEDIUMPre-NVD 5.95.9
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.9 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

Also known asEUVD-2026-89200 (ENISA EUVD) · GHSA-xj26-f3rj-75vp (GitHub Security Advisories)Source: ENISA EUVD

5.9EG
EchelonGraph verdictMonitorNo fix is confirmed yet: check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.9Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (Eclipse Foundation) lists Eclipse Foundation GUIX versions up to and including 6.5.1.202602a as affected, and Eclipse Foundation GUIX versions 6.5.2.202603 as unaffected. No release containing a fix is confirmed on record.

gx_binres_theme_load() sizes its theme buffer for the theme it was asked for, and allocates it even when the resource holds no theme with that id. A theme id at or past the theme count declared by the resource gets a buffer of zero bytes. The load pass then walks past the end of the theme table, takes whatever follows as a theme header, and writes a GX_THEME and its tables into that zero-byte buffer.

CVSS
5.9
EG Score
5.9MEDIUMmedium confidence
EG Risk
27
EG Risk 27/100

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)
Severity59% × 45%
Impact severity (EG Severity): CVSS 5.9 of 10. Never the KEV-floored or EPSS-lifted EG Score.
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: No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.
EPSS PROB
0.1%
EPSS %ILE
1st
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 (5.9): severity, escalated by confirmed exploitation. This CVE's 5.9 is its impact severity (EG Severity), not escalated.

EG Severity
5.9 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source
EG Likelihood
0.1% 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.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.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.

No fix is confirmed yet. Check the vendor's advisory for a fixed release; until one is applied, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule.

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.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

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

September 29, 2026

Last Modified

September 29, 2026

Vendor Advisories for CVE-2026-102729(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 28× 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 → 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.

  1. 2026-11-12 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  2. 2026-11-11 16:37 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  3. 2026-11-11 05:52 UTCEchelonGraph re-scored
  4. 2026-11-11 05:52 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp · GitHub severity MODERATE
  5. 2026-11-10 16:41 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  6. 2026-11-06 16:35 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-11-04 00:32 UTCEchelonGraph re-scored
  10. 2026-11-04 00:32 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp · GitHub severity MODERATE
  11. 2026-11-03 16:45 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  12. 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  14. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  15. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-10-29 14:49 UTCEchelonGraph re-scored
  17. 2026-10-29 14:49 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  18. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  19. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  20. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  21. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  22. 2026-10-25 14:56 UTCEchelonGraph re-scored
  23. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  24. 2026-10-23 09:28 UTCEchelonGraph re-scored
  25. 2026-10-23 09:28 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
Show 51 more
  1. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  2. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  3. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  4. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  5. 2026-10-18 05:10 UTCEchelonGraph re-scored
  6. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  10. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-10-12 16:40 UTCEchelonGraph re-scored
  12. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-10-11 22:59 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  14. 2026-10-11 20:16 UTCEchelonGraph re-scored
  15. 2026-10-11 18:28 UTCEchelonGraph re-scored
  16. 2026-10-11 15:02 UTCEchelonGraph re-scored
  17. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  18. 2026-10-10 20:40 UTCEchelonGraph re-scored
  19. 2026-10-10 20:39 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  20. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  21. 2026-10-09 18:18 UTCEchelonGraph re-scored
  22. 2026-10-09 18:17 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  23. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  24. 2026-10-08 15:55 UTCEchelonGraph re-scored
  25. 2026-10-08 15:55 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  26. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  27. 2026-10-07 11:36 UTCEchelonGraph re-scored
  28. 2026-10-07 11:36 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  29. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  30. 2026-10-06 09:17 UTCEchelonGraph re-scored
  31. 2026-10-06 09:17 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  32. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  33. 2026-10-05 06:59 UTCEchelonGraph re-scored
  34. 2026-10-05 06:59 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  35. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  36. 2026-10-04 04:40 UTCEchelonGraph re-scored
  37. 2026-10-04 04:40 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  38. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  39. 2026-10-03 02:22 UTCEchelonGraph re-scored
  40. 2026-10-03 02:22 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  41. 2026-10-02 00:01 UTCEchelonGraph re-scored
  42. 2026-10-02 00:01 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  43. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  44. 2026-09-30 21:39 UTCEchelonGraph re-scored
  45. 2026-09-30 21:39 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  46. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  47. 2026-09-29 19:20 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  48. 2026-09-29 19:09 UTCGHSA enrichmentGHSA-xj26-f3rj-75vp
  49. 2026-09-29 18:26 UTCEchelonGraph re-scored
  50. 2026-09-29 18:06 UTCEchelonGraph re-scoredFirst assessed: 5.9 MEDIUM
  51. 2026-09-29 18:03 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-102729?
CVE-2026-102729 is a medium-severity vulnerability; its CVE record was published on September 29, 2026. gx_binres_theme_load() sizes its theme buffer for the theme it was asked for, and allocates it even when the resource holds no theme with that id. A theme id at or past the theme count declared by the resource gets a buffer of zero bytes. The load pass then walks past the end of the theme table,…
When was the CVE record for CVE-2026-102729 published?
The CVE record for CVE-2026-102729 was published on September 29, 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 29, 2026; the record at its source may have been updated since.
Is CVE-2026-102729 actively exploited?
CVE-2026-102729 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-2026-102729?
CVE-2026-102729 has a CVSS base score of 5.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-102729?
No fix for CVE-2026-102729 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (Eclipse Foundation) lists Eclipse Foundation GUIX versions up to and including 6.5.1.202602a as affected, and Eclipse Foundation GUIX versions 6.5.2.202603 as unaffected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-102729 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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