CVE-2026-46049

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 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

A fix is available — apply it.

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

ALSA: ctxfi: Add fallback to default RSR for S/PDIF

spdif_passthru_playback_get_resources() uses atc->pll_rate as the RSR for the MSR calculation loop. However, pll_rate is only updated in atc_pll_init() and not in hw_pll_init(), so it remains 0 after the card init.

When spdif_passthru_playback_setup() skips atc_pll_init() for 32000 Hz, (rsr * desc.msr) always becomes 0, causing the loop to spin indefinitely.

Add fallback to use atc->rsr when atc->pll_rate is 0. This reflects the hardware state, since hw_card_init() already configures the PLL to the default RSR.

CVSS v3
5.5
EG Score
5.5(medium)
EPSS
2.4%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 16, 2026

Advisory Details (8)

Auto-updated Jun 16, 2026
No patch confirmed yet.
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dfc00979ff00d9dfdfa1df32144a272ee2728102
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d0b53842211f73a10ea174100a213f7fa14b9f33
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/95b1ee8442cabbde83b2848e7c6100df90f3a00d
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7d61662197ecdc458e33e475b6ada7f6da61d364
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/615b7a5e5d8be68d52f262579906f7e015ba4606
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/30f9494c6f2b53a78822cfb653ffbb1d092d44c8
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/25ded535ee261161bcf19dafd525c542e606559d
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/09496158f6ebba8830593f8972035c02f97124c1

Vendor Advisories for CVE-2026-46049(2)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-07-11ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-07-11ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-07-11ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-07-11ubuntu

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.

Additional Vendor Advisories

(4)

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 10× in last 7d / 60× 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 101 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 02:00 UTCEPSS rescore
  3. 2026-07-13 22:30 UTCEPSS rescore
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-12 05:46 UTCEPSS rescore
  6. 2026-07-11 23:42 UTCEG score recompute
  7. 2026-07-11 23:42 UTCVendor advisory
  8. 2026-07-11 23:42 UTCGHSA enrichment
  9. 2026-07-11 08:27 UTCEPSS rescore
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-08 23:51 UTCEG score recompute
  12. 2026-07-08 23:51 UTCVendor advisory
  13. 2026-07-08 23:51 UTCGHSA enrichment
  14. 2026-07-08 15:16 UTCEPSS rescore
  15. 2026-07-07 13:46 UTCEPSS rescore
  16. 2026-07-06 16:27 UTCEPSS rescore
  17. 2026-07-06 02:23 UTCEPSS rescore
  18. 2026-07-05 02:30 UTCEPSS rescore
  19. 2026-07-04 06:31 UTCEPSS rescore
  20. 2026-07-01 15:07 UTCEPSS rescore
  21. 2026-07-01 10:16 UTCEG score recompute
  22. 2026-07-01 10:16 UTCVendor advisory
  23. 2026-07-01 10:16 UTCGHSA enrichment
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-29 14:20 UTCEG score recompute
Show 75 more
  1. 2026-06-29 14:20 UTCVendor advisory
  2. 2026-06-29 14:20 UTCGHSA enrichment
  3. 2026-06-28 14:07 UTCEPSS rescore
  4. 2026-06-28 06:43 UTCEG score recompute
  5. 2026-06-28 06:43 UTCVendor advisory
  6. 2026-06-28 06:43 UTCGHSA enrichment
  7. 2026-06-28 04:56 UTCEPSS rescore
  8. 2026-06-28 04:56 UTCEPSS rescore
  9. 2026-06-27 05:56 UTCEG score recompute
  10. 2026-06-27 05:56 UTCVendor advisory
  11. 2026-06-27 05:56 UTCGHSA enrichment
  12. 2026-06-26 02:28 UTCEG score recompute
  13. 2026-06-26 02:28 UTCVendor advisory
  14. 2026-06-26 02:28 UTCGHSA enrichment
  15. 2026-06-25 13:49 UTCEPSS rescore
  16. 2026-06-25 01:07 UTCEG score recompute
  17. 2026-06-25 01:07 UTCVendor advisory
  18. 2026-06-25 01:07 UTCGHSA enrichment
  19. 2026-06-24 14:05 UTCEPSS rescore
  20. 2026-06-23 21:33 UTCEPSS rescore
  21. 2026-06-23 21:33 UTCEPSS rescore
  22. 2026-06-22 14:25 UTCEPSS rescore
  23. 2026-06-22 14:25 UTCEPSS rescore
  24. 2026-06-21 14:56 UTCEPSS rescore
  25. 2026-06-21 14:56 UTCEPSS rescore
  26. 2026-06-21 01:59 UTCEPSS rescore
  27. 2026-06-21 01:59 UTCEPSS rescore
  28. 2026-06-19 19:26 UTCEPSS rescore
  29. 2026-06-19 19:26 UTCEPSS rescore
  30. 2026-06-18 17:52 UTCEPSS rescore
  31. 2026-06-18 17:52 UTCEPSS rescore
  32. 2026-06-17 17:53 UTCEPSS rescore
  33. 2026-06-17 11:05 UTCEG score recompute▲ 5.50
  34. 2026-06-17 11:05 UTCGHSA enrichment
  35. 2026-06-16 17:52 UTCEPSS rescore
  36. 2026-06-16 15:47 UTCNVD updateCVSS v3 → 5.5 · severity → MEDIUM
  37. 2026-06-15 17:49 UTCEPSS rescore
  38. 2026-06-14 23:28 UTCMITRE cvelistV5
  39. 2026-06-14 04:28 UTCVendor advisory
  40. 2026-06-14 04:27 UTCGHSA enrichment
  41. 2026-06-13 23:00 UTCEPSS rescore
  42. 2026-06-12 23:12 UTCEPSS rescore
  43. 2026-06-12 23:12 UTCEPSS rescore
  44. 2026-06-11 14:00 UTCEPSS rescore
  45. 2026-06-10 22:18 UTCEPSS rescore
  46. 2026-06-10 21:16 UTCVendor advisory
  47. 2026-06-10 21:16 UTCGHSA enrichment
  48. 2026-06-10 13:22 UTCEPSS rescore
  49. 2026-06-10 13:22 UTCEPSS rescore
  50. 2026-06-08 14:17 UTCEPSS rescore
  51. 2026-06-08 14:17 UTCEPSS rescore
  52. 2026-06-07 15:25 UTCEPSS rescore
  53. 2026-06-07 15:25 UTCEPSS rescore
  54. 2026-06-07 14:42 UTCGHSA enrichment
  55. 2026-06-06 13:47 UTCEPSS rescore
  56. 2026-06-06 13:47 UTCEPSS rescore
  57. 2026-06-05 22:47 UTCEPSS rescore
  58. 2026-06-05 06:10 UTCEPSS rescore
  59. 2026-06-05 06:10 UTCEPSS rescore
  60. 2026-06-04 13:12 UTCEPSS rescore
  61. 2026-06-04 13:12 UTCEPSS rescore
  62. 2026-06-04 08:08 UTCGHSA enrichment
  63. 2026-06-02 20:13 UTCEPSS rescore
  64. 2026-06-01 13:52 UTCEPSS rescore
  65. 2026-06-01 13:52 UTCEPSS rescore
  66. 2026-06-01 01:33 UTCEG score recompute
  67. 2026-06-01 01:33 UTCGHSA enrichment
  68. 2026-05-31 22:30 UTCEPSS rescore
  69. 2026-05-31 22:30 UTCEPSS rescore
  70. 2026-05-31 00:16 UTCEPSS rescore
  71. 2026-05-31 00:16 UTCEPSS rescore
  72. 2026-05-29 13:44 UTCEPSS rescore
  73. 2026-05-29 13:44 UTCEPSS rescore
  74. 2026-05-28 13:44 UTCEPSS rescore
  75. 2026-05-28 13:44 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-46049?
CVE-2026-46049 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Add fallback to default RSR for S/PDIF spdifpassthruplaybackgetresources() uses atc->pll_rate as the RSR for the MSR calculation loop. However, pll_rate is only updated in atcpllinit() and not in hwpllinit(), so it…
When was CVE-2026-46049 disclosed?
CVE-2026-46049 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46049 actively exploited?
CVE-2026-46049 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46049?
CVE-2026-46049 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-46049?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46049, 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.

Dependency Blast Radius

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