CVE-2022-49053

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-02-27. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

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

scsi: target: tcmu: Fix possible page UAF

tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not take refcount properly and just returns page pointer. When tcmu_try_get_data_page() returns, the returned page may have been freed by tcmu_blocks_release().

We need to get_page() under cmdr_lock to avoid concurrent tcmu_blocks_release().

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

February 26, 2025

Last Modified

August 5, 2026

Advisory Details (7)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

scsi: target: tcmu: Fix possible page UAF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a6968f7a367f128d120447360734344d5a3d5336
generic

scsi: target: tcmu: Fix possible page UAF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a9564d84ed9f6ee71017d062d0d2182154294a4b
generic

scsi: target: tcmu: Fix possible page UAF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322
generic

scsi: target: tcmu: Fix possible page UAF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/aec36b98a1bbaa84bfd8299a306e4c12314af626
generic

scsi: target: tcmu: Fix possible page UAF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fb7a5115422fbd6a4d505e8844f1ef5529f10489
generic

scsi: target: tcmu: Fix possible page UAF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e3e0e067d5b34e4a68e3cc55f8eebc413f56f8ed
generic

scsi: target: tcmu: Fix possible page UAF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d7c5d79e50be6e06b669141e3db1f977a0dd4e8e

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 4.14.276—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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 49× 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 115 total refreshes for this CVE.

  1. 2026-08-07 16:24 UTCEPSS rescore
  2. 2026-08-06 13:44 UTCEPSS rescore
  3. 2026-08-05 19:15 UTCEPSS rescore
  4. 2026-08-05 09:35 UTCEG score recompute
  5. 2026-08-05 09:35 UTCGHSA enrichment
  6. 2026-08-04 15:07 UTCEPSS rescore
  7. 2026-08-04 10:35 UTCEPSS rescore
  8. 2026-08-04 09:47 UTCEG score recompute
  9. 2026-08-04 09:47 UTCGHSA enrichment
  10. 2026-08-03 10:33 UTCEPSS rescore
  11. 2026-08-02 02:24 UTCEPSS rescore
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  20. 2026-07-24 14:41 UTCOSV refresh
  21. 2026-07-24 14:15 UTCEPSS rescore
  22. 2026-07-23 14:16 UTCEPSS rescore
  23. 2026-07-23 14:16 UTCEPSS rescore
  24. 2026-07-23 02:16 UTCEG score recompute
  25. 2026-07-22 23:03 UTCEG score recompute
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  1. 2026-07-22 14:06 UTCEPSS rescore
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  5. 2026-07-20 17:05 UTCEPSS rescore
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  21. 2026-07-12 05:44 UTCEPSS rescore
  22. 2026-07-11 08:25 UTCEPSS rescore
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  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. 2026-07-07 10:21 UTCOSV refresh
  28. 2026-07-06 16:25 UTCEPSS rescore
  29. 2026-07-06 02:21 UTCEPSS rescore
  30. 2026-07-05 02:28 UTCEPSS rescore
  31. 2026-07-04 06:29 UTCEPSS rescore
  32. 2026-07-01 15:04 UTCEPSS rescore
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  45. 2026-06-23 21:31 UTCEPSS rescore
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  47. 2026-06-22 14:24 UTCEPSS rescore
  48. 2026-06-21 14:55 UTCEPSS rescore
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  50. 2026-06-21 01:58 UTCEPSS rescore
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  52. 2026-06-19 19:24 UTCEPSS rescore
  53. 2026-06-19 19:24 UTCEPSS rescore
  54. 2026-06-18 21:13 UTCOSV refresh
  55. 2026-06-18 17:51 UTCEPSS rescore
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  68. 2026-06-10 13:21 UTCEPSS rescore
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  70. 2026-06-08 14:15 UTCEPSS rescore
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  72. 2026-06-07 15:23 UTCEPSS rescore
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  74. 2026-06-06 13:46 UTCEPSS rescore
  75. 2026-06-06 13:46 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2022-49053?
CVE-2022-49053 is a high vulnerability published on February 26, 2025. In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmutrygetdatapage() looks up pages under cmdr_lock, but it does not take refcount properly and just returns page pointer. When tcmutrygetdatapage() returns, the returned page may have been…
When was CVE-2022-49053 disclosed?
CVE-2022-49053 was first published in the National Vulnerability Database on February 26, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-49053 actively exploited?
CVE-2022-49053 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 80.2% of all scored CVEs.
What is the CVSS score of CVE-2022-49053?
CVE-2022-49053 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-49053?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-49053, 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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