CVE-2026-53355

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-01. the CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: 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:

net: rds: clear i_sends on setup unwind

The RDS IB connection teardown path is written so it can run during partial startup and on repeated shutdown attempts. It uses NULL pointers to distinguish resources that are still owned from resources that have already been released.

When rds_ib_setup_qp() fails after allocating i_sends but before allocating i_recvs, the sends_out path frees i_sends without clearing the pointer. A later shutdown pass can still treat that stale pointer as a live send ring allocation.

Clear i_sends after vfree() in the error unwind path so the existing shutdown logic continues to use the correct ownership state.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

July 1, 2026

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Sep 9, 2026
No patch confirmed yet.
generic

net: rds: clear i_sends on setup unwind - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/20cf0fb715c41111469577e85e35d15f099473e0
generic

net: rds: clear i_sends on setup unwind - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/27040bbca289a704eafcacca167d310c6ce2b1bc
generic

net: rds: clear i_sends on setup unwind - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1d4ec754ee3871f7e3670c67bb0298c9c5760926
generic

net: rds: clear i_sends on setup unwind - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f16ad421a4e3e7db2d14bdf3b16f583bc4f3b30a
generic

net: rds: clear i_sends on setup unwind - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e7cf30aa5f1fc6c2a86df65df8b731df20e44d79
generic

net: rds: clear i_sends on setup unwind - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/29d940026dce39e3018dab6f67c9427249321270
generic

net: rds: clear i_sends on setup unwind - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2c5e5e4a5970c41f16e3ad801a78719ed5d5c71b
generic

net: rds: clear i_sends on setup unwind - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/66cccec111421a10efdc2c74499d15b93e7acae5

Vendor Advisories for CVE-2026-53355(2)

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

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
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 11× in last 7d / 167× 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 428 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53355?
CVE-2026-53355 is a critical vulnerability published on July 1, 2026. In the Linux kernel, the following vulnerability has been resolved: net: rds: clear i_sends on setup unwind The RDS IB connection teardown path is written so it can run during partial startup and on repeated shutdown attempts. It uses NULL pointers to distinguish resources that are still owned from…
When was CVE-2026-53355 disclosed?
CVE-2026-53355 was first published in the National Vulnerability Database on July 1, 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-2026-53355 actively exploited?
CVE-2026-53355 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 64.5% of all scored CVEs.
What is the CVSS score of CVE-2026-53355?
CVE-2026-53355 has a CVSS v4.0 base score of 9.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-53355?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53355, 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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