CVE-2023-26150

MEDIUMNVD 6.56.5
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.5% (42nd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Trending — 3 sources updated this weekElevated
6.5EG
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: 0.5%CVSS: 6.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Versions of the package asyncua before 0.9.96 are vulnerable to Improper Authentication such that it is possible to access Address Space without encryption and authentication. Note: This issue is a result of missing checks for services that require an active session.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
60
EG Risk 60/100

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)
Severity65% × 45%
The EG Score, 6.5 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
42nd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

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 yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

October 3, 2023

Last Modified

November 21, 2024

References (7)

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
asyncua0.5.0 ... 0.9.13 (64 versions)
  • every version up to 0.9.96: fixed in 0.9.96
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 27× 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 88 of 183 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. 12 repeat rows among the latest 100 are merged into the row they repeat. The 95 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:29 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-10-12 23:54 UTCOSV refresh
  3. 2026-10-12 18:32 UTCEG score recompute
  4. 2026-10-12 16:30 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  5. 2026-10-11 21:57 UTCEG score recompute
  6. 2026-10-11 13:45 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-10-10 19:57 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  8. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  9. 2026-10-08 17:06 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  10. 2026-10-07 23:45 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  15. 2026-10-02 16:23 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  16. 2026-10-01 19:47 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  17. 2026-09-30 16:19 UTCEG score recompute
  18. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  19. 2026-09-29 15:16 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  20. 2026-09-28 13:49 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  21. 2026-09-27 13:42 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  22. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  23. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  24. 2026-09-23 13:45 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  25. 2026-09-22 22:01 UTCOSV refresh
Show 63 more
  1. 2026-09-22 14:45 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  2. 2026-09-16 14:05 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  3. 2026-09-13 16:44 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  4. 2026-09-12 14:58 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  5. 2026-09-11 14:50 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  6. 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  7. 2026-09-08 21:57 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  8. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  9. 2026-09-06 13:45 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  10. 2026-09-05 15:25 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  11. 2026-09-04 13:58 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  12. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  13. 2026-09-03 17:16 UTCOSV refresh
  14. 2026-09-02 14:09 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  15. 2026-09-01 13:51 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  16. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  17. 2026-08-30 01:19 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  18. 2026-08-28 21:38 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  19. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  20. 2026-08-26 14:43 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  21. 2026-08-25 13:46 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  22. 2026-08-24 14:14 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  23. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  24. 2026-08-21 23:46 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  25. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  26. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  27. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  28. 2026-08-17 13:44 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  29. 2026-08-17 06:27 UTCOSV refresh
  30. 2026-08-16 14:53 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  31. 2026-08-16 02:12 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  32. 2026-08-15 01:28 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  33. 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  34. 2026-08-12 13:48 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  35. 2026-08-11 13:39 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  36. 2026-08-09 13:44 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  37. 2026-08-08 16:34 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  38. 2026-08-07 16:24 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  39. 2026-08-06 13:44 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  40. 2026-08-05 19:15 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  41. 2026-08-04 15:07 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  42. 2026-08-04 10:35 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  43. 2026-08-03 10:34 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  44. 2026-08-02 02:24 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  45. 2026-08-02 01:06 UTCOSV refresh
  46. 2026-08-01 04:13 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  47. 2026-07-30 16:26 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  48. 2026-07-30 01:28 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  49. 2026-07-28 15:34 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  50. 2026-07-27 14:10 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  51. 2026-07-26 14:52 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  52. 2026-07-25 14:16 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  53. 2026-07-24 14:15 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  54. 2026-07-23 14:16 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  55. 2026-07-23 02:20 UTCEG score recompute
  56. 2026-07-22 23:08 UTCEG score recompute
  57. 2026-07-22 14:06 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  58. 2026-07-21 15:23 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  59. 2026-07-20 17:06 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  60. 2026-07-19 14:29 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  61. 2026-07-19 02:27 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  62. 2026-07-18 10:03 UTCEPSS rescoreEPSS 0.5% · 36th percentile
  63. 2026-07-16 17:01 UTCEPSS rescoreEPSS 0.5% · 36th percentile

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2023-26150?
CVE-2023-26150 is a medium-severity vulnerability; its CVE record was published on October 3, 2023. Versions of the package asyncua before 0.9.96 are vulnerable to Improper Authentication such that it is possible to access Address Space without encryption and authentication. Note: This issue is a result of missing checks for services that require an active session.
When was the CVE record for CVE-2023-26150 published?
The CVE record for CVE-2023-26150 was published on October 3, 2023. 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 November 21, 2024; the record at its source may have been updated since.
Is CVE-2023-26150 actively exploited?
CVE-2023-26150 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-26150?
CVE-2023-26150 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2023-26150?
A fix for CVE-2023-26150 is available: update to the fixed version the vendor names in its advisory.

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