CVE-2026-53160

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
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:

misc: fastrpc: fix use-after-free race in fastrpc_map_create

fastrpc_map_lookup returns a raw pointer after releasing fl->lock. The caller fastrpc_map_create then calls fastrpc_map_get (kref_get_unless_zero) on this unprotected pointer. A concurrent MEM_UNMAP can free the map between the lock release and the kref operation, resulting in a use-after-free on the freed slab object.

Restore the take_ref parameter to fastrpc_map_lookup so the reference is acquired atomically under fl->lock before the pointer is exposed to the caller.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

June 25, 2026

Last Modified

August 5, 2026

Advisory Details (6)

Auto-updated Jun 28, 2026
No patch confirmed yet.
generic

misc: fastrpc: fix use-after-free race in fastrpc_map_create - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f20f6512ecb75c816e0debf4551a138f098615c4
generic

misc: fastrpc: fix use-after-free race in fastrpc_map_create - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/992f121796b7ca83a5a8b93da24e971363206218
generic

misc: fastrpc: fix use-after-free race in fastrpc_map_create - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8b080c89183196fd3e49212f2a1a1c4a29335b9c
generic

misc: fastrpc: fix use-after-free race in fastrpc_map_create - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5b0166112019d1dce30b976ab28fd67f7f0be532
generic

misc: fastrpc: fix use-after-free race in fastrpc_map_create - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0a3b87293fbd34fda651e6aead9964f84b893962
generic

misc: fastrpc: fix use-after-free race in fastrpc_map_create - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/07ebe87915d8accdaba20c4f88c5ae430fe62fbb

Vendor Advisories for CVE-2026-53160(2)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (145 versions)7.0.13-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 74× 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 275 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53160?
CVE-2026-53160 is a high vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix use-after-free race in fastrpcmapcreate fastrpcmaplookup returns a raw pointer after releasing fl->lock. The caller fastrpcmapcreate then calls fastrpcmapget (krefgetunless_zero) on this unprotected pointer. A…
When was CVE-2026-53160 disclosed?
CVE-2026-53160 was first published in the National Vulnerability Database on June 25, 2026, 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-2026-53160 actively exploited?
CVE-2026-53160 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 93.3% of all scored CVEs.
What is the CVSS score of CVE-2026-53160?
CVE-2026-53160 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-53160?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53160, 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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