CVE-2022-49436

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2025-10-22. 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
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: 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:

powerpc/papr_scm: Fix leaking nvdimm_events_map elements

Right now 'char *' elements allocated for individual 'stat_id' in 'papr_scm_priv.nvdimm_events_map[]' during papr_scm_pmu_check_events(), get leaked in papr_scm_remove() and papr_scm_pmu_register(), papr_scm_pmu_check_events() error paths.

Also individual 'stat_id' arent NULL terminated 'char *' instead they are fixed 8-byte sized identifiers. However papr_scm_pmu_register() assumes it to be a NULL terminated 'char *' and at other places it assumes it to be a 'papr_scm_perf_stat.stat_id' sized string which is 8-byes in size.

Fix this by allocating the memory for papr_scm_priv.nvdimm_events_map to also include space for 'stat_id' entries. This is possible since number of available events/stat_ids are known upfront. This saves some memory and one extra level of indirection from 'nvdimm_events_map' to 'stat_id'. Also rest of the code can continue to call 'kfree(papr_scm_priv.nvdimm_events_map)' without needing to iterate over the array and free up individual elements.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
11.2%
KEV
Not listed

Published

February 26, 2025

Last Modified

October 22, 2025

References (2)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 5.18.3—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 17× in last 7d / 45× 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. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-24 14:11 UTCOSV refresh
  3. 2026-07-23 14:16 UTCEPSS rescore
  4. 2026-07-23 14:16 UTCEPSS rescore
  5. 2026-07-23 02:16 UTCEG score recompute
  6. 2026-07-22 23:04 UTCEG score recompute
  7. 2026-07-22 14:06 UTCEPSS rescore
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  9. 2026-07-21 15:23 UTCEPSS rescore
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  25. 2026-07-11 08:25 UTCEPSS rescore
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  1. 2026-07-11 08:25 UTCEPSS rescore
  2. 2026-07-09 19:08 UTCEPSS rescore
  3. 2026-07-08 15:13 UTCEPSS rescore
  4. 2026-07-07 13:44 UTCEPSS rescore
  5. 2026-07-07 09:51 UTCOSV refresh
  6. 2026-07-06 16:25 UTCEPSS rescore
  7. 2026-07-06 02:21 UTCEPSS rescore
  8. 2026-07-05 02:28 UTCEPSS rescore
  9. 2026-07-04 06:29 UTCEPSS rescore
  10. 2026-07-01 15:04 UTCEPSS rescore
  11. 2026-06-30 23:21 UTCEPSS rescore
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  19. 2026-06-25 13:48 UTCEPSS rescore
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  21. 2026-06-24 14:03 UTCEPSS rescore
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  23. 2026-06-23 21:31 UTCEPSS rescore
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  25. 2026-06-22 14:24 UTCEPSS rescore
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  28. 2026-06-21 01:58 UTCEPSS rescore
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  30. 2026-06-19 19:24 UTCEPSS rescore
  31. 2026-06-19 19:24 UTCEPSS rescore
  32. 2026-06-18 20:44 UTCOSV refresh
  33. 2026-06-18 17:51 UTCEPSS rescore
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  35. 2026-06-17 17:51 UTCEPSS rescore
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  39. 2026-06-15 17:47 UTCEPSS rescore
  40. 2026-06-14 23:16 UTCEPSS rescore
  41. 2026-06-13 22:59 UTCEPSS rescore
  42. 2026-06-12 23:10 UTCEPSS rescore
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  44. 2026-06-11 13:58 UTCEPSS rescore
  45. 2026-06-11 13:58 UTCEPSS rescore
  46. 2026-06-10 13:21 UTCEPSS rescore
  47. 2026-06-10 13:21 UTCEPSS rescore
  48. 2026-06-08 14:15 UTCEPSS rescore
  49. 2026-06-08 14:15 UTCEPSS rescore
  50. 2026-06-07 15:23 UTCEPSS rescore
  51. 2026-06-07 15:23 UTCEPSS rescore
  52. 2026-06-06 13:46 UTCEPSS rescore
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  54. 2026-06-05 22:46 UTCEPSS rescore
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  56. 2026-06-05 06:09 UTCEPSS rescore
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  58. 2026-06-04 13:11 UTCEPSS rescore
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  63. 2026-05-31 22:29 UTCEPSS rescore
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  65. 2026-05-31 00:15 UTCEPSS rescore
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  67. 2026-05-30 10:54 UTCEG score recompute
  68. 2026-05-30 10:54 UTCGHSA enrichment
  69. 2026-05-30 02:05 UTCOSV refresh
  70. 2026-05-29 13:43 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2022-49436?
CVE-2022-49436 is a medium vulnerability published on February 26, 2025. In the Linux kernel, the following vulnerability has been resolved: powerpc/paprscm: Fix leaking nvdimmevents_map elements Right now 'char *' elements allocated for individual 'stat_id' in 'paprscmpriv.nvdimmeventsmap[]' during paprscmpmucheckevents(), get leaked in paprscmremove() and…
When was CVE-2022-49436 disclosed?
CVE-2022-49436 was first published in the National Vulnerability Database on February 26, 2025, with the most recent update on October 22, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-49436 actively exploited?
CVE-2022-49436 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 11.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-49436?
CVE-2022-49436 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2022-49436?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-49436, 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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