CVE-2026-45988

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-27. a secondary CVSS source baseline 9.8; sources differ by 0.0.

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

A fix is available — apply it.

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

rxrpc: Fix re-decryption of RESPONSE packets

If a RESPONSE packet gets a temporary failure during processing, it may end up in a partially decrypted state - and then get requeued for a retry.

Fix this by just discarding the packet; we will send another CHALLENGE packet and thereby elicit a further response. Similarly, discard an incoming CHALLENGE packet if we get an error whilst generating a RESPONSE; the server will send another CHALLENGE.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
36.8%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 16, 2026

Advisory Details (5)

Auto-updated Jun 20, 2026
No patch confirmed yet.
generic

rxrpc: Fix re-decryption of RESPONSE packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f55b383070170e988e4dec28be2af1714d258521
generic

rxrpc: Fix re-decryption of RESPONSE packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d61482be4aae1835b78875761206241835a7510e
generic

rxrpc: Fix re-decryption of RESPONSE packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7b89868305052b94a91b708c462bc2281fa42a4a
generic

rxrpc: Fix re-decryption of RESPONSE packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/76cb9a2d252274adfae6e293a292434631a7d472
generic

rxrpc: Fix re-decryption of RESPONSE packets - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0422e7a4883f25101903f3e8105c0808aa5f4ce9

Vendor Advisories for CVE-2026-45988(2)

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

Patch Availability(23)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-07-11ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-40.40) @ questing2026-07-11ubuntu
ubuntulinux-tools-oem-6.17 (6.17.0-1028.28) @ noble2026-07-11ubuntu
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-07-11ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.185.166) @ jammy2026-07-11ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-07-11ubuntu
ubuntulinux-tools-lowlatency-hwe-22.04-edge (6.8.0-134.134.1~22.04.1) @ jammy2026-07-11ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-07-11ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-07-11ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1108.114~20.04.1) @ focal2026-07-11ubuntu
ubuntulinux-virtual (3.13.0.214.224) @ trusty2026-07-11ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-07-11ubuntu
ubuntulinux-tools-nvidia-hwe-24.04 (6.17.0-1026.26) @ noble2026-07-11ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-07-11ubuntu
ubuntulinux-tools-raspi-6.17 (6.17.0-1021.21) @ questing2026-07-11ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-07-11ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-07-11ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1105.103) @ jammy2026-07-11ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1074 (5.15.0-1074.78) @ jammy2026-07-11ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.253.237) @ bionic2026-07-11ubuntu
ubuntulinux-tools-aws-lts-18.04 (4.15.0.1194.192) @ bionic2026-07-11ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ 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

(23)

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 / 135× 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 372 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 23:58 UTCEG score recompute
  7. 2026-07-11 23:58 UTCVendor advisory
  8. 2026-07-11 23:57 UTCGHSA enrichment
  9. 2026-07-11 08:27 UTCEPSS rescore
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-09 00:16 UTCEG score recompute
  12. 2026-07-09 00:16 UTCVendor advisory
  13. 2026-07-09 00:15 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 16:02 UTCEG score recompute
  21. 2026-07-01 16:02 UTCVendor advisory
  22. 2026-07-01 16:01 UTCGHSA enrichment
  23. 2026-07-01 15:07 UTCEPSS rescore
  24. 2026-07-01 11:10 UTCEG score recompute
  25. 2026-07-01 11:10 UTCVendor advisory
Show 75 more
  1. 2026-07-01 11:10 UTCGHSA enrichment
  2. 2026-06-30 23:22 UTCEPSS rescore
  3. 2026-06-30 09:13 UTCEG score recompute
  4. 2026-06-30 09:13 UTCVendor advisory
  5. 2026-06-30 09:13 UTCGHSA enrichment
  6. 2026-06-30 03:26 UTCEG score recompute
  7. 2026-06-30 03:26 UTCVendor advisory
  8. 2026-06-30 03:26 UTCGHSA enrichment
  9. 2026-06-29 19:49 UTCEG score recompute
  10. 2026-06-29 19:49 UTCVendor advisory
  11. 2026-06-29 19:49 UTCGHSA enrichment
  12. 2026-06-29 14:26 UTCEG score recompute
  13. 2026-06-29 14:26 UTCVendor advisory
  14. 2026-06-29 14:26 UTCGHSA enrichment
  15. 2026-06-29 14:06 UTCEPSS rescore
  16. 2026-06-29 14:06 UTCEPSS rescore
  17. 2026-06-29 01:16 UTCEG score recompute
  18. 2026-06-29 01:16 UTCVendor advisory
  19. 2026-06-29 01:16 UTCGHSA enrichment
  20. 2026-06-28 21:02 UTCEG score recompute
  21. 2026-06-28 21:02 UTCVendor advisory
  22. 2026-06-28 21:02 UTCGHSA enrichment
  23. 2026-06-28 16:45 UTCEG score recompute
  24. 2026-06-28 16:45 UTCVendor advisory
  25. 2026-06-28 16:45 UTCGHSA enrichment
  26. 2026-06-28 14:07 UTCEPSS rescore
  27. 2026-06-28 11:35 UTCEG score recompute
  28. 2026-06-28 11:35 UTCVendor advisory
  29. 2026-06-28 11:35 UTCGHSA enrichment
  30. 2026-06-28 07:26 UTCEG score recompute
  31. 2026-06-28 07:26 UTCVendor advisory
  32. 2026-06-28 07:26 UTCGHSA enrichment
  33. 2026-06-28 04:56 UTCEPSS rescore
  34. 2026-06-28 04:56 UTCEPSS rescore
  35. 2026-06-28 02:55 UTCEG score recompute
  36. 2026-06-28 02:55 UTCVendor advisory
  37. 2026-06-28 02:55 UTCGHSA enrichment
  38. 2026-06-27 22:45 UTCEG score recompute
  39. 2026-06-27 22:45 UTCVendor advisory
  40. 2026-06-27 22:45 UTCGHSA enrichment
  41. 2026-06-27 18:35 UTCEG score recompute
  42. 2026-06-27 18:35 UTCVendor advisory
  43. 2026-06-27 18:35 UTCGHSA enrichment
  44. 2026-06-27 14:25 UTCEG score recompute
  45. 2026-06-27 14:25 UTCVendor advisory
  46. 2026-06-27 14:25 UTCGHSA enrichment
  47. 2026-06-27 10:15 UTCEG score recompute
  48. 2026-06-27 10:15 UTCVendor advisory
  49. 2026-06-27 10:15 UTCGHSA enrichment
  50. 2026-06-27 06:05 UTCEG score recompute
  51. 2026-06-27 06:05 UTCVendor advisory
  52. 2026-06-27 06:05 UTCGHSA enrichment
  53. 2026-06-27 03:08 UTCEPSS rescore
  54. 2026-06-26 21:20 UTCEG score recompute
  55. 2026-06-26 21:20 UTCVendor advisory
  56. 2026-06-26 21:20 UTCGHSA enrichment
  57. 2026-06-26 17:11 UTCEG score recompute
  58. 2026-06-26 17:11 UTCVendor advisory
  59. 2026-06-26 17:11 UTCGHSA enrichment
  60. 2026-06-26 02:33 UTCEG score recompute
  61. 2026-06-26 02:33 UTCVendor advisory
  62. 2026-06-26 02:33 UTCGHSA enrichment
  63. 2026-06-25 21:42 UTCEG score recompute
  64. 2026-06-25 21:42 UTCVendor advisory
  65. 2026-06-25 21:42 UTCGHSA enrichment
  66. 2026-06-25 17:21 UTCEG score recompute
  67. 2026-06-25 17:21 UTCVendor advisory
  68. 2026-06-25 17:21 UTCGHSA enrichment
  69. 2026-06-25 13:49 UTCEPSS rescore
  70. 2026-06-25 13:11 UTCEG score recompute
  71. 2026-06-25 13:11 UTCVendor advisory
  72. 2026-06-25 13:11 UTCGHSA enrichment
  73. 2026-06-25 08:54 UTCEG score recompute
  74. 2026-06-25 08:54 UTCVendor advisory
  75. 2026-06-25 08:54 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-45988?
CVE-2026-45988 is a critical vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix re-decryption of RESPONSE packets If a RESPONSE packet gets a temporary failure during processing, it may end up in a partially decrypted state - and then get requeued for a retry. Fix this by just discarding the packet;…
When was CVE-2026-45988 disclosed?
CVE-2026-45988 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-2026-45988 actively exploited?
CVE-2026-45988 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45988?
CVE-2026-45988 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-45988?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45988, 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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