CVE-2026-92449

MEDIUMPre-NVD 6.86.8
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (4th 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
Trending — 3 sources updated this week

Also known asEUVD-2026-105036 (ENISA EUVD)Source: ENISA EUVD

6.8EG
EchelonGraph verdictMonitorNo fix is confirmed yet: check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 6.8Exploit: 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 Eclipse ThreadX - GUIX versions 6.3.0 up to and including 6.5.1.202602a as affected, and Eclipse Foundation Eclipse ThreadX - GUIX versions 6.5.2.202603 as unaffected. No release containing a fix is confirmed on record.

_gx_binres_pixelmap_table_load() in the GUIX binary resource (theme) loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A crafted theme drives a write of up to roughly 256 KB past the end of the table.

The overflowed buffer is allocated by GUIX itself, through _gx_system_memory_allocator, rather than supplied by the caller, so the loader corrupts its own arena. The public API gx_binres_theme_load() takes no size parameter, so no amount of caller diligence prevents this.

Reproduces in the shipped default configuration; GX_BINARY_RESOURCE_SUPPORT is enabled by default.

CVSS v3
6.8
EG Score
6.8MEDIUMmedium confidence
EG Risk
31
EG Risk 31/100

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)
Severity68% × 45%
Impact severity (EG Severity): CVSS 6.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 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 low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (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: No fix is confirmed yet. Check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule.
EPSS PROB
0.2%
EPSS %ILE
4th
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 (6.8): severity, escalated by confirmed exploitation. This CVE's 6.8 is its impact severity (EG Severity), not escalated.

EG Severity
6.8 MEDIUMCVSS-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 2026-10-29). 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 or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 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 low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation none (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.

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 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

October 20, 2026

Last Modified

October 20, 2026

Advisory Details (1)

Auto-updated Oct 20, 2026
No fix on record yet. Sources: github.
GitHub advisoryMentions a patch (unverified)

Binary resource loader: unbounded map_id from a theme file causes a heap out-of-bounds write in the GUIX-allocated arena · Advisory · eclipse-threadx/guix · GitHub

https://github.com/eclipse-threadx/guix/security/advisories/GHSA-m85v-2ccm-w6gf

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 19× 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.

  1. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  3. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  4. 2026-10-29 17:08 UTCEG score recompute
  5. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  6. 2026-10-28 17:25 UTCOSV refresh
  7. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  8. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  9. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  10. 2026-10-25 13:50 UTCEG score recompute
  11. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  12. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  13. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  14. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  15. 2026-10-20 16:29 UTCEG score recompute
  16. 2026-10-20 15:37 UTCEG score recompute
  17. 2026-10-20 15:27 UTCEG score recompute
  18. 2026-10-20 14:59 UTCEG score recomputeFirst assessed: 6.8 MEDIUM
  19. 2026-10-20 14:56 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-92449?
CVE-2026-92449 is a medium-severity vulnerability; its CVE record was published on October 20, 2026. _gx_binres_pixelmap_table_load() in the GUIX binary resource (theme) loader indexes the pixelmap table with a value read verbatim from the resource file and never bounds it against the table size. A crafted theme drives a write of up to roughly 256 KB past the end of the table. The overflowed…
When was the CVE record for CVE-2026-92449 published?
The CVE record for CVE-2026-92449 was published on October 20, 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 October 20, 2026; the record at its source may have been updated since.
Is CVE-2026-92449 actively exploited?
CVE-2026-92449 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (4th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-92449?
CVE-2026-92449 has a CVSS base score of 6.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-92449?
No fix for CVE-2026-92449 is confirmed yet. Until one is published, restrict network exposure of the affected system — for example, keep it off the internet or limit it to trusted networks — and watch for a fix. The CVE record's CNA (Eclipse Foundation) lists Eclipse Foundation Eclipse ThreadX - GUIX versions 6.3.0 up to and including 6.5.1.202602a as affected, and Eclipse Foundation Eclipse ThreadX - GUIX versions 6.5.2.202603 as unaffected. No release containing a fix is confirmed on record.

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