CVE-2023-1193

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2023-11-01. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.5Exploit: None knownExposed: 0

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

A use-after-free flaw was found in setup_async_work in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. This issue could allow an attacker to crash the system by accessing freed work.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
30(Track)
EG Risk 30/100SSVC: Track

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
Severity65% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
61%
KEV
Not listed

Published

November 1, 2023

Last Modified

November 21, 2024

References (6)

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.27-1 ... 6.1.76-1~bpo11+1 (17 versions)6.1.76-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.3.7-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.3.7-1—

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× in last 7d / 45× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 124 total refreshes for this CVE.

  1. 2026-08-09 13:44 UTCEPSS rescore
  2. 2026-08-09 13:44 UTCEPSS rescore
  3. 2026-08-08 16:34 UTCEPSS rescore
  4. 2026-08-07 16:24 UTCEPSS rescore
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  11. 2026-08-01 22:06 UTCOSV refresh
  12. 2026-08-01 04:13 UTCEPSS rescore
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  14. 2026-07-30 16:25 UTCEPSS rescore
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  16. 2026-07-28 15:34 UTCEPSS rescore
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  21. 2026-07-23 14:16 UTCEPSS rescore
  22. 2026-07-23 14:16 UTCEPSS rescore
  23. 2026-07-23 02:17 UTCEG score recompute
  24. 2026-07-22 23:05 UTCEG score recompute
  25. 2026-07-22 14:06 UTCEPSS rescore
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  1. 2026-07-22 14:06 UTCEPSS rescore
  2. 2026-07-21 15:23 UTCEPSS rescore
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  4. 2026-07-20 17:05 UTCEPSS rescore
  5. 2026-07-19 14:29 UTCEPSS rescore
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  7. 2026-07-19 02:27 UTCEPSS rescore
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  9. 2026-07-18 10:03 UTCEPSS rescore
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  11. 2026-07-16 17:00 UTCEPSS rescore
  12. 2026-07-15 16:56 UTCEPSS rescore
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  14. 2026-07-15 05:19 UTCOSV refresh
  15. 2026-07-15 01:58 UTCEPSS rescore
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  17. 2026-07-13 22:28 UTCEPSS rescore
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  19. 2026-07-13 06:11 UTCEPSS rescore
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  21. 2026-07-12 05:44 UTCEPSS rescore
  22. 2026-07-11 08:25 UTCEPSS rescore
  23. 2026-07-11 08:25 UTCEPSS rescore
  24. 2026-07-09 19:08 UTCEPSS rescore
  25. 2026-07-08 15:13 UTCEPSS rescore
  26. 2026-07-07 13:44 UTCEPSS rescore
  27. 2026-07-06 16:25 UTCEPSS rescore
  28. 2026-07-06 02:21 UTCEPSS rescore
  29. 2026-07-05 02:28 UTCEPSS rescore
  30. 2026-07-04 06:29 UTCEPSS rescore
  31. 2026-07-01 15:04 UTCEPSS rescore
  32. 2026-06-30 23:21 UTCEPSS rescore
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  34. 2026-06-28 14:06 UTCEPSS rescore
  35. 2026-06-28 04:54 UTCEPSS rescore
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  37. 2026-06-27 06:04 UTCOSV refresh
  38. 2026-06-27 03:07 UTCEPSS rescore
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  40. 2026-06-25 13:48 UTCEPSS rescore
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  42. 2026-06-24 14:03 UTCEPSS rescore
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  44. 2026-06-23 21:31 UTCEPSS rescore
  45. 2026-06-23 21:31 UTCEPSS rescore
  46. 2026-06-22 14:24 UTCEPSS rescore
  47. 2026-06-21 14:55 UTCEPSS rescore
  48. 2026-06-21 14:55 UTCEPSS rescore
  49. 2026-06-21 01:58 UTCEPSS rescore
  50. 2026-06-21 01:58 UTCEPSS rescore
  51. 2026-06-19 19:24 UTCEPSS rescore
  52. 2026-06-19 19:24 UTCEPSS rescore
  53. 2026-06-18 17:51 UTCEPSS rescore
  54. 2026-06-18 17:51 UTCEPSS rescore
  55. 2026-06-17 17:51 UTCEPSS rescore
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  57. 2026-06-16 17:51 UTCEPSS rescore
  58. 2026-06-16 17:51 UTCEPSS rescore
  59. 2026-06-15 17:47 UTCEPSS rescore
  60. 2026-06-14 23:16 UTCEPSS rescore
  61. 2026-06-13 22:59 UTCEPSS rescore
  62. 2026-06-12 23:10 UTCEPSS rescore
  63. 2026-06-12 23:10 UTCEPSS rescore
  64. 2026-06-11 13:58 UTCEPSS rescore
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  66. 2026-06-10 13:21 UTCEPSS rescore
  67. 2026-06-10 13:21 UTCEPSS rescore
  68. 2026-06-09 16:17 UTCOSV refresh
  69. 2026-06-08 14:15 UTCEPSS rescore
  70. 2026-06-08 14:15 UTCEPSS rescore
  71. 2026-06-07 15:23 UTCEPSS rescore
  72. 2026-06-07 15:23 UTCEPSS rescore
  73. 2026-06-06 13:46 UTCEPSS rescore
  74. 2026-06-06 13:46 UTCEPSS rescore
  75. 2026-06-05 22:46 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-1193?
CVE-2023-1193 is a medium vulnerability published on November 1, 2023. A use-after-free flaw was found in setupasyncwork in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. This issue could allow an attacker to crash the system by accessing freed work.
When was CVE-2023-1193 disclosed?
CVE-2023-1193 was first published in the National Vulnerability Database on November 1, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-1193 actively exploited?
CVE-2023-1193 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 39.0% of all scored CVEs.
What is the CVSS score of CVE-2023-1193?
CVE-2023-1193 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2023-1193?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-1193, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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