CVE-2026-23282

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-03-25. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix oops due to uninitialised var in smb2_unlink()

If SMB2_open_init() or SMB2_close_init() fails (e.g. reconnect), the iovs set @rqst will be left uninitialised, hence calling SMB2_open_free(), SMB2_close_free() or smb2_set_related() on them will oops.

Fix this by initialising @close_iov and @open_iov before setting them in @rqst.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

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)
Severity55% × 45%
The EG Score, 5.5 of 10.
Exploitation0% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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.
EPSS PROB
0.1%
EPSS %ILE
1st
KEV
Not listed

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

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

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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

March 25, 2026

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Aug 6, 2026
Patch available.
generic

smb: client: fix oops due to uninitialised var in smb2_unlink() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dc710c87af3341554d02d634ada1d2036c49a94a
generic

smb: client: fix oops due to uninitialised var in smb2_unlink() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/86163b98891aa9800f6103252e5acc7bb98afb91
generic

smb: client: fix oops due to uninitialised var in smb2_unlink() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/048efe129a297256d3c2088cf8d79515ff5ec864

Vendor Advisories for CVE-2026-23282(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
linuxKernel @ 6.18.17 (fixes >=6.17.0)—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (121 versions)
  • every version up to 6.19.8-1: fixed in 6.19.8-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 24× 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 95 of 203 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. 5 repeat rows among the latest 100 are merged into the row they repeat. The 108 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-11 14:48 UTCEG score recompute
  2. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  3. 2026-10-11 06:25 UTCOSV refresh
  4. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  5. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  6. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  8. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  10. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  12. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-09-29 15:21 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  14. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  15. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  17. 2026-09-24 14:03 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  18. 2026-09-21 18:19 UTCOSV refresh
  19. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  20. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  21. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  25. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
Show 70 more
  1. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  2. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  3. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  4. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  5. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  6. 2026-09-02 15:08 UTCOSV refresh
  7. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  8. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  9. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  11. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  14. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  15. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  16. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  17. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  18. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  19. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  20. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  21. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-08-16 10:26 UTCEG score recompute
  24. 2026-08-16 10:26 UTCGHSA enrichmentGHSA-xc6w-xcgh-jjhw · GitHub CVSS 5.5
  25. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  26. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  27. 2026-08-14 06:45 UTCEG score recompute
  28. 2026-08-14 06:45 UTCGHSA enrichmentGHSA-xc6w-xcgh-jjhw · GitHub CVSS 5.5
  29. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  30. 2026-08-13 00:38 UTCEG score recompute
  31. 2026-08-13 00:38 UTCGHSA enrichmentGHSA-xc6w-xcgh-jjhw · GitHub CVSS 5.5
  32. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  33. 2026-08-12 02:22 UTCEG score recompute
  34. 2026-08-12 02:22 UTCGHSA enrichmentGHSA-xc6w-xcgh-jjhw · GitHub CVSS 5.5
  35. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  36. 2026-08-11 04:05 UTCEG score recompute
  37. 2026-08-11 04:05 UTCGHSA enrichmentGHSA-xc6w-xcgh-jjhw · GitHub CVSS 5.5
  38. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  39. 2026-08-10 04:37 UTCEG score recompute
  40. 2026-08-10 04:37 UTCGHSA enrichmentGHSA-xc6w-xcgh-jjhw · GitHub CVSS 5.5
  41. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  42. 2026-08-09 06:21 UTCEG score recompute
  43. 2026-08-09 06:21 UTCGHSA enrichmentGHSA-xc6w-xcgh-jjhw · GitHub CVSS 5.5
  44. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  45. 2026-08-07 16:38 UTCEG score recompute
  46. 2026-08-07 16:38 UTCGHSA enrichmentGHSA-xc6w-xcgh-jjhw · GitHub CVSS 5.5
  47. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  48. 2026-08-06 01:06 UTCEG score recompute
  49. 2026-08-06 01:06 UTCGHSA enrichmentGHSA-xc6w-xcgh-jjhw · GitHub CVSS 5.5
  50. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  51. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  52. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  53. 2026-08-03 23:52 UTCEG score recompute
  54. 2026-08-03 23:52 UTCGHSA enrichmentGHSA-xc6w-xcgh-jjhw · GitHub CVSS 5.5
  55. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  56. 2026-08-02 15:40 UTCEG score recompute
  57. 2026-08-02 15:40 UTCGHSA enrichmentGHSA-xc6w-xcgh-jjhw · GitHub CVSS 5.5
  58. 2026-08-02 02:26 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  59. 2026-08-01 04:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-07-30 01:30 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  61. 2026-07-27 14:13 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  62. 2026-07-26 14:54 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  63. 2026-07-25 14:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  64. 2026-07-24 14:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  65. 2026-07-23 14:18 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  66. 2026-07-23 03:06 UTCEG score recompute
  67. 2026-07-22 14:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  68. 2026-07-21 15:24 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  69. 2026-07-20 17:08 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  70. 2026-07-19 14:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile

Frequently asked(5)

What is CVE-2026-23282?
CVE-2026-23282 is a medium-severity vulnerability; its CVE record was published on March 25, 2026. In the Linux kernel, the following vulnerability has been resolved: smb: client: fix oops due to uninitialised var in smb2_unlink() If SMB2openinit() or SMB2closeinit() fails (e.g. reconnect), the iovs set @rqst will be left uninitialised, hence calling SMB2openfree(), SMB2closefree() or…
When was the CVE record for CVE-2026-23282 published?
The CVE record for CVE-2026-23282 was published on March 25, 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 June 17, 2026; the record at its source may have been updated since.
Is CVE-2026-23282 actively exploited?
CVE-2026-23282 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-23282?
CVE-2026-23282 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-23282?
A fix for CVE-2026-23282 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-23282 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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