CVE-2026-25209

CRITICALNVD 9.19.1
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.3% (17th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 6.5 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-04-13) is not newer than that change (2026-10-26), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-21826 (ENISA EUVD) · GHSA-rwxh-99xg-w46m (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
EchelonGraph verdictPlan mitigationThe upstream fix is not in a release yet: until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 9.1Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

Out-of-bounds read vulnerability in Samsung Open Source Escargot allows Resource Leak Exposure.This issue affects Escargot: 97e8115ab1110bc502b4b5e4a0c689a71520d335.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
41
EG Risk 41/100

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)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 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: An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it.
EPSS PROB
0.3%
EPSS %ILE
17th
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 (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). 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.

An upstream fix is merged but not yet in a tagged release. Until the release ships, restrict network exposure of the affected system or apply the vendor's mitigation on your normal schedule, then apply it.

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

April 13, 2026

Last Modified

October 26, 2026

Advisory Details (1)

Auto-updated Aug 2, 2026
Upstream fix merged — awaiting tagged release. Sources: github_pr.
GitHub pull request

Fix minor issues

Fix merged in Samsung/escargot PR #1554 on 2026-04-08 — awaiting tagged release

https://github.com/Samsung/escargot/pull/1554

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 51× 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 291 rows 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. None are among the latest 100 rows. The 191 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:51 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  2. 2026-11-13 12:47 UTCEchelonGraph re-scored
  3. 2026-11-13 12:47 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  4. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  5. 2026-11-12 13:17 UTCEchelonGraph re-scored
  6. 2026-11-12 13:17 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  7. 2026-11-11 16:39 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  8. 2026-11-11 13:48 UTCEchelonGraph re-scored
  9. 2026-11-11 13:48 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  10. 2026-11-10 16:43 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  11. 2026-11-10 14:19 UTCEchelonGraph re-scored
  12. 2026-11-10 14:19 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  13. 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  14. 2026-11-09 14:50 UTCEchelonGraph re-scored
  15. 2026-11-09 14:50 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  16. 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  17. 2026-11-08 15:21 UTCEchelonGraph re-scored
  18. 2026-11-08 15:21 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  19. 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  20. 2026-11-07 15:52 UTCEchelonGraph re-scored
  21. 2026-11-07 15:52 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  22. 2026-11-06 16:37 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  23. 2026-11-06 16:23 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  24. 2026-11-06 03:55 UTCOSV refresh
  25. 2026-11-05 16:53 UTCEchelonGraph re-scored
Show 75 more
  1. 2026-11-05 16:53 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  2. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  3. 2026-11-04 17:24 UTCEchelonGraph re-scored
  4. 2026-11-04 17:24 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  5. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  6. 2026-11-03 17:54 UTCEchelonGraph re-scored
  7. 2026-11-03 17:54 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  8. 2026-11-03 16:47 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  9. 2026-11-02 18:25 UTCEchelonGraph re-scored
  10. 2026-11-02 18:25 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  11. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  12. 2026-11-01 18:55 UTCEchelonGraph re-scored
  13. 2026-11-01 18:55 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub severity MODERATE · GitHub CVSS 6.5
  14. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  15. 2026-10-31 19:27 UTCEchelonGraph re-scored
  16. 2026-10-31 19:26 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub CVSS 6.5
  17. 2026-10-30 19:57 UTCEchelonGraph re-scored
  18. 2026-10-30 19:57 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub CVSS 6.5
  19. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  20. 2026-10-29 20:28 UTCEchelonGraph re-scored
  21. 2026-10-29 20:28 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub CVSS 6.5
  22. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  23. 2026-10-28 20:59 UTCEchelonGraph re-scored
  24. 2026-10-28 20:58 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub CVSS 6.5
  25. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  26. 2026-10-27 21:27 UTCEchelonGraph re-scored
  27. 2026-10-27 21:27 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub CVSS 6.5
  28. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  29. 2026-10-26 21:58 UTCEchelonGraph re-scored▲ 2.60
  30. 2026-10-26 21:58 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub CVSS 6.5
  31. 2026-10-26 21:26 UTCNVD updateCVSS v3 → 9.1 · severity → CRITICAL
  32. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  33. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  34. 2026-10-25 14:40 UTCEchelonGraph re-scored
  35. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  36. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  37. 2026-10-23 04:40 UTCEchelonGraph re-scored
  38. 2026-10-23 04:39 UTCGHSA enrichmentGHSA-rwxh-99xg-w46m · GitHub CVSS 6.5
  39. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  40. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  41. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  42. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  43. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  44. 2026-10-18 03:53 UTCEchelonGraph re-scored
  45. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  46. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  47. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  48. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  49. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  50. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  51. 2026-10-12 16:19 UTCEchelonGraph re-scored
  52. 2026-10-11 20:01 UTCEchelonGraph re-scored
  53. 2026-10-11 17:14 UTCEchelonGraph re-scored
  54. 2026-10-11 14:46 UTCEchelonGraph re-scored
  55. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  56. 2026-10-10 20:23 UTCOSV refresh
  57. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  58. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  59. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  60. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  61. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  62. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  63. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  64. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  65. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  66. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  67. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  68. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  69. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  70. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  71. 2026-09-24 14:03 UTCEPSS rescoreEPSS 0.3% · 14th percentile
  72. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  73. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  74. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  75. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 16th percentile

Frequently asked(5)

What is CVE-2026-25209?
CVE-2026-25209 is a critical-severity vulnerability; its CVE record was published on April 13, 2026. Out-of-bounds read vulnerability in Samsung Open Source Escargot allows Resource Leak Exposure.This issue affects Escargot: 97e8115ab1110bc502b4b5e4a0c689a71520d335.
When was the CVE record for CVE-2026-25209 published?
The CVE record for CVE-2026-25209 was published on April 13, 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 26, 2026; the record at its source may have been updated since.
Is CVE-2026-25209 actively exploited?
CVE-2026-25209 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (17th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-25209?
CVE-2026-25209 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-25209?
An upstream fix for CVE-2026-25209 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix.

Dependency Blast Radius

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