CVE-2022-49720

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-03-07. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 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:

block: Fix handling of offline queues in blk_mq_alloc_request_hctx()

This patch prevents that test nvme/004 triggers the following:

UBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9 index 512 is out of range for type 'long unsigned int [512]' Call Trace: show_stack+0x52/0x58 dump_stack_lvl+0x49/0x5e dump_stack+0x10/0x12 ubsan_epilogue+0x9/0x3b __ubsan_handle_out_of_bounds.cold+0x44/0x49 blk_mq_alloc_request_hctx+0x304/0x310 __nvme_submit_sync_cmd+0x70/0x200 [nvme_core] nvmf_connect_io_queue+0x23e/0x2a0 [nvme_fabrics] nvme_loop_connect_io_queues+0x8d/0xb0 [nvme_loop] nvme_loop_create_ctrl+0x58e/0x7d0 [nvme_loop] nvmf_create_ctrl+0x1d7/0x4d0 [nvme_fabrics] nvmf_dev_write+0xae/0x111 [nvme_fabrics] vfs_write+0x144/0x560 ksys_write+0xb7/0x140 __x64_sys_write+0x42/0x50 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae

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
21.0%
KEV
Not listed

Published

February 26, 2025

Last Modified

October 1, 2025

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× 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.

  1. 2026-07-23 02:16 UTCEG score recompute
  2. 2026-07-22 23:04 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
  4. 2026-07-22 14:06 UTCEPSS rescore
  5. 2026-07-21 15:23 UTCEPSS rescore
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  1. 2026-07-09 19:08 UTCEPSS rescore
  2. 2026-07-08 15:13 UTCEPSS rescore
  3. 2026-07-07 13:44 UTCEPSS rescore
  4. 2026-07-07 09:21 UTCOSV refresh
  5. 2026-07-06 16:25 UTCEPSS rescore
  6. 2026-07-06 02:21 UTCEPSS rescore
  7. 2026-07-05 02:28 UTCEPSS rescore
  8. 2026-07-01 15:04 UTCEPSS rescore
  9. 2026-06-30 23:21 UTCEPSS rescore
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  17. 2026-06-25 13:48 UTCEPSS rescore
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  26. 2026-06-21 01:58 UTCEPSS rescore
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  28. 2026-06-19 19:24 UTCEPSS rescore
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  30. 2026-06-18 20:13 UTCOSV refresh
  31. 2026-06-18 17:51 UTCEPSS rescore
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  42. 2026-06-11 13:58 UTCEPSS rescore
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  44. 2026-06-10 13:21 UTCEPSS rescore
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  46. 2026-06-08 14:15 UTCEPSS rescore
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  48. 2026-06-07 15:23 UTCEPSS rescore
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  50. 2026-06-06 13:46 UTCEPSS rescore
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  63. 2026-05-31 00:15 UTCEPSS rescore
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  65. 2026-05-30 10:40 UTCEG score recompute
  66. 2026-05-30 10:40 UTCGHSA enrichment
  67. 2026-05-29 13:43 UTCEPSS rescore
  68. 2026-05-29 13:35 UTCOSV refresh

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-49720?
CVE-2022-49720 is a high vulnerability published on February 26, 2025. In the Linux kernel, the following vulnerability has been resolved: block: Fix handling of offline queues in blkmqallocrequesthctx() This patch prevents that test nvme/004 triggers the following: UBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9 index 512 is out of range for type 'long…
When was CVE-2022-49720 disclosed?
CVE-2022-49720 was first published in the National Vulnerability Database on February 26, 2025, with the most recent update on October 1, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-49720 actively exploited?
CVE-2022-49720 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 21.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-49720?
CVE-2022-49720 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-49720?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-49720, 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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