CVE-2023-1192

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
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.5Exploit: NoneExposed: 0

A fix is available — apply it.

A use-after-free flaw was found in smb2_is_status_io_timeout() in CIFS in the Linux Kernel. After CIFS transfers response data to a system call, there are still local variable points to the memory region, and if the system call frees it faster than CIFS uses it, CIFS will access a free memory region, leading to a denial of service.

CVSS v3
6.5
EG Score
6.5(medium)
EPSS
62.0%
KEV
Not listed

Published

November 1, 2023

Last Modified

November 21, 2024

References (6)

Vendor Advisories for CVE-2023-1192(7)

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

Patch Availability(13)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:4.18.0-193.133.1.el8_22024-04-23redhat
redhatkernel-rt-0:4.18.0-193.133.1.rt13.184.el8_22024-04-23redhat
redhatkernel-rt-0:5.14.0-70.93.1.rt21.165.el9_02024-03-13redhat
redhatkernel-0:5.14.0-70.93.2.el9_02024-03-12redhat
redhatkernel-0:4.18.0-305.120.1.el8_42024-01-30redhat
redhatkernel-rt-0:4.18.0-305.120.1.rt7.196.el8_42024-01-30redhat
redhatkernel-0:4.18.0-372.87.1.el8_62024-01-25redhat
redhatkernel-0:5.14.0-284.48.1.el9_22024-01-25redhat
redhatkernel-rt-0:5.14.0-284.48.1.rt14.333.el9_22024-01-25redhat
redhatkernel-0:5.14.0-362.13.1.el9_32023-12-12redhat
redhatkernel-0:4.18.0-513.9.1.el8_92023-11-28redhat
redhatkernel-rt-0:4.18.0-513.9.1.rt7.311.el8_92023-11-28redhat
redhatkernel-0:4.18.0-477.36.1.el8_82023-11-28redhat

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.

Weakness Classification(1)

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

Additional Vendor Advisories

(7)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 12× in last 7d / 47× 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 103 total refreshes for this CVE.

  1. 2026-07-22 14:06 UTCEPSS rescore
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  45. 2026-06-09 16:17 UTCOSV refresh
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Frequently asked(5)

What is CVE-2023-1192?
CVE-2023-1192 is a medium vulnerability published on November 1, 2023. A use-after-free flaw was found in smb2isstatusiotimeout() in CIFS in the Linux Kernel. After CIFS transfers response data to a system call, there are still local variable points to the memory region, and if the system call frees it faster than CIFS uses it, CIFS will access a free memory region,…
When was CVE-2023-1192 disclosed?
CVE-2023-1192 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-2023-1192 actively exploited?
CVE-2023-1192 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 62.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-1192?
CVE-2023-1192 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2023-1192?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-1192, 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.

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