CVE-2026-73583

MEDIUMPre-NVD 6.66.6—
EchelonGraph scoreMEDIUM confidence

Score 6.6 from GitHub Security Advisory published 2026-08-13. A secondary CVSS source baseline 6.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 6.6Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in sblim-sfcb. A local attacker with access to the system can exploit an unsafe deserialization vulnerability in the provider-manager's inter-process communication (IPC) message parsing. By sending a specially crafted message, the attacker can cause out-of-bounds memory access, leading to the termination of the provider-manager process and a denial of service. This could also potentially result in limited unintended information disclosure.

CVSS v3
6.6
EG Score
6.6MEDIUMmedium confidence
EG Risk
30
EG Risk 30/100CISA SSVC

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
Severity66% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
2nd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 13, 2026

Last Modified

August 25, 2026

Advisory Details (2)

Auto-updated Aug 13, 2026
Patch available. Sources: redhat.
redhat

2462126 – (CVE-2026-73583) CVE-2026-73583 sblim-sfcb: Unsafe deserialization in sblim-sfcb provider-manager IPC allows out-of-bounds memory access via malformed OperationHdr

https://bugzilla.redhat.com/show_bug.cgi?id=2462126
redhat Patch Available

CVE-2026-73583 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-73583

Vendor Advisories for CVE-2026-73583(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 61× 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 123 total refreshes for this CVE.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 22:24 UTCGHSA enrichment
  3. 2026-10-03 19:53 UTCEG score recompute
  4. 2026-10-03 19:53 UTCGHSA enrichment
  5. 2026-10-03 14:26 UTCEPSS rescore
  6. 2026-10-02 08:05 UTCEG score recompute
  7. 2026-10-02 08:05 UTCGHSA enrichment
  8. 2026-10-01 19:50 UTCEPSS rescore
  9. 2026-09-30 21:50 UTCEG score recompute
  10. 2026-09-30 21:50 UTCGHSA enrichment
  11. 2026-09-28 13:52 UTCEPSS rescore
  12. 2026-09-28 09:21 UTCEG score recompute
  13. 2026-09-28 09:21 UTCGHSA enrichment
  14. 2026-09-27 13:48 UTCEPSS rescore
  15. 2026-09-27 09:48 UTCEG score recompute
  16. 2026-09-27 09:48 UTCGHSA enrichment
  17. 2026-09-26 15:59 UTCEPSS rescore
  18. 2026-09-25 03:37 UTCEG score recompute
  19. 2026-09-25 03:37 UTCGHSA enrichment
  20. 2026-09-23 23:32 UTCEG score recompute
  21. 2026-09-23 23:32 UTCGHSA enrichment
  22. 2026-09-23 17:54 UTCEPSS rescore
  23. 2026-09-22 23:49 UTCEG score recompute
  24. 2026-09-22 23:49 UTCGHSA enrichment
  25. 2026-09-21 23:48 UTCGHSA enrichment
Show 75 more
  1. 2026-09-21 00:13 UTCGHSA enrichment
  2. 2026-09-20 00:24 UTCGHSA enrichment
  3. 2026-09-19 00:51 UTCEG score recompute
  4. 2026-09-19 00:51 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 01:17 UTCEG score recompute
  7. 2026-09-18 01:17 UTCGHSA enrichment
  8. 2026-09-17 01:44 UTCEG score recompute
  9. 2026-09-17 01:44 UTCGHSA enrichment
  10. 2026-09-16 14:08 UTCEPSS rescore
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-16 02:10 UTCEG score recompute
  13. 2026-09-16 02:10 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-15 02:36 UTCGHSA enrichment
  16. 2026-09-14 03:01 UTCEG score recompute
  17. 2026-09-14 03:01 UTCGHSA enrichment
  18. 2026-09-13 03:28 UTCEG score recompute
  19. 2026-09-13 03:28 UTCGHSA enrichment
  20. 2026-09-12 15:02 UTCEPSS rescore
  21. 2026-09-12 03:54 UTCEG score recompute
  22. 2026-09-12 03:54 UTCGHSA enrichment
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 04:19 UTCEG score recompute
  25. 2026-09-11 04:19 UTCGHSA enrichment
  26. 2026-09-10 09:35 UTCEPSS rescore
  27. 2026-09-10 04:46 UTCGHSA enrichment
  28. 2026-09-09 05:06 UTCEG score recompute
  29. 2026-09-09 05:06 UTCGHSA enrichment
  30. 2026-09-08 22:01 UTCEPSS rescore
  31. 2026-09-07 23:30 UTCGHSA enrichment
  32. 2026-09-06 23:56 UTCEG score recompute
  33. 2026-09-06 23:56 UTCGHSA enrichment
  34. 2026-09-06 13:48 UTCEPSS rescore
  35. 2026-09-06 00:14 UTCEG score recompute
  36. 2026-09-06 00:14 UTCGHSA enrichment
  37. 2026-09-05 00:37 UTCEG score recompute
  38. 2026-09-05 00:37 UTCGHSA enrichment
  39. 2026-09-04 05:07 UTCEPSS rescore
  40. 2026-09-03 23:13 UTCGHSA enrichment
  41. 2026-09-02 23:21 UTCEG score recompute
  42. 2026-09-02 23:20 UTCGHSA enrichment
  43. 2026-09-02 14:12 UTCEPSS rescore
  44. 2026-09-01 21:46 UTCEG score recompute
  45. 2026-09-01 21:46 UTCGHSA enrichment
  46. 2026-09-01 13:54 UTCEPSS rescore
  47. 2026-09-01 04:40 UTCEPSS rescore
  48. 2026-09-01 04:40 UTCEPSS rescore
  49. 2026-08-31 21:37 UTCGHSA enrichment
  50. 2026-08-30 14:43 UTCEG score recompute
  51. 2026-08-30 14:43 UTCGHSA enrichment
  52. 2026-08-30 01:22 UTCEPSS rescore
  53. 2026-08-29 15:09 UTCGHSA enrichment
  54. 2026-08-28 14:14 UTCGHSA enrichment
  55. 2026-08-27 14:41 UTCEG score recompute
  56. 2026-08-27 14:41 UTCGHSA enrichment
  57. 2026-08-27 14:25 UTCEPSS rescore
  58. 2026-08-26 14:58 UTCEG score recompute
  59. 2026-08-26 14:58 UTCGHSA enrichment
  60. 2026-08-26 14:47 UTCEPSS rescore
  61. 2026-08-25 15:25 UTCEG score recompute
  62. 2026-08-25 15:25 UTCGHSA enrichment
  63. 2026-08-25 13:49 UTCEPSS rescore
  64. 2026-08-24 17:15 UTCEG score recompute
  65. 2026-08-24 17:15 UTCGHSA enrichment
  66. 2026-08-23 16:44 UTCGHSA enrichment
  67. 2026-08-22 17:11 UTCEG score recompute
  68. 2026-08-22 17:11 UTCGHSA enrichment
  69. 2026-08-21 23:49 UTCEPSS rescore
  70. 2026-08-21 17:37 UTCEG score recompute
  71. 2026-08-21 17:37 UTCGHSA enrichment
  72. 2026-08-20 22:56 UTCEPSS rescore
  73. 2026-08-20 18:04 UTCGHSA enrichment
  74. 2026-08-19 18:30 UTCGHSA enrichment
  75. 2026-08-18 18:47 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73583?
CVE-2026-73583 is a medium vulnerability published on August 13, 2026. A flaw was found in sblim-sfcb. A local attacker with access to the system can exploit an unsafe deserialization vulnerability in the provider-manager's inter-process communication (IPC) message parsing. By sending a specially crafted message, the attacker can cause out-of-bounds memory access,…
When was CVE-2026-73583 disclosed?
CVE-2026-73583 was first published on August 13, 2026, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73583 actively exploited?
CVE-2026-73583 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73583?
CVE-2026-73583 has a CVSS base score of 6.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73583?
A fix for CVE-2026-73583 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73583 are linked in the Vendor Advisories panel on this page.

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