CVE-2026-45988

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-27. 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

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)
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
39%
KEV
Not listed

Published

May 27, 2026

Last Modified

August 5, 2026

Advisory Details (5)

Auto-updated Sep 16, 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/0422e7a4883f25101903f3e8105c0808aa5f4ce9
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/76cb9a2d252274adfae6e293a292434631a7d472
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/d61482be4aae1835b78875761206241835a7510e

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(31)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-09-14ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-09-14ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-40.40) @ questing2026-09-14ubuntu
ubuntulinux-tools-oem-6.17 (6.17.0-1028.28) @ noble2026-09-14ubuntu
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.185.166) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-lowlatency-hwe-22.04-edge (6.8.0-134.134.1~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1108.114~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-virtual (3.13.0.214.224) @ trusty2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-24.04 (6.17.0-1026.26) @ noble2026-09-14ubuntu
ubuntulinux-tools-realtime-hwe-24.04-edge (6.17.0-1017.19) @ questing2026-09-14ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-09-14ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1105.103) @ jammy2026-09-14ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.253.237) @ bionic2026-09-14ubuntu
ubuntulinux-virtual-hwe-24.04 (6.17.0-40.40~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1106.112~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-fips (4.4.0.1126.128) @ xenial2026-09-14ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-14ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1021.21~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.17 (6.17.0-1018.18~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1116.101) @ jammy2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1079 (5.4.0-1079.83) @ focal2026-09-14ubuntu
linuxKernel @ 6.6.140—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.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (350 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.86-1~bpo12+1 (19 versions)6.12.86-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.4-1~bpo13+1 (134 versions)7.0.4-1—

Additional Vendor Advisories

(24)

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 9× in last 7d / 44× 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 496 total refreshes for this CVE.

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

Related CVEs(same product + same vendor)

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 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-2026-45988 actively exploited?
CVE-2026-45988 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 61.0% of all scored CVEs.
What is the CVSS score of CVE-2026-45988?
CVE-2026-45988 has a CVSS v4.0 base score of 9.8 (CNA self-assessment; NVD's own analysis pending).
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.

Dependency Blast Radius

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