rxrpc: Fix re-decryption of RESPONSE packets
Summary
| CVE | CVE-2026-45988 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-27 14:17:16 UTC |
| Updated | 2026-05-30 11:17:17 UTC |
| Description | 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. |
Risk And Classification
Primary CVSS: v3.1 9.8 CRITICAL from 416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.000600000 probability, percentile 0.190810000 (date 2026-06-02)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 17926a79320afa9b95df6b977b40cca6d8713cea d61482be4aae1835b78875761206241835a7510e git | Not specified |
| CNA | Linux | Linux | affected 17926a79320afa9b95df6b977b40cca6d8713cea 7b89868305052b94a91b708c462bc2281fa42a4a git | Not specified |
| CNA | Linux | Linux | affected 17926a79320afa9b95df6b977b40cca6d8713cea 76cb9a2d252274adfae6e293a292434631a7d472 git | Not specified |
| CNA | Linux | Linux | affected 17926a79320afa9b95df6b977b40cca6d8713cea f55b383070170e988e4dec28be2af1714d258521 git | Not specified |
| CNA | Linux | Linux | affected 17926a79320afa9b95df6b977b40cca6d8713cea 0422e7a4883f25101903f3e8105c0808aa5f4ce9 git | Not specified |
| CNA | Linux | Linux | affected 2.6.22 | Not specified |
| CNA | Linux | Linux | unaffected 2.6.22 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.140 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.86 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.27 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.4 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1-rc1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/76cb9a2d252274adfae6e293a292434631a7d472 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/0422e7a4883f25101903f3e8105c0808aa5f4ce9 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/f55b383070170e988e4dec28be2af1714d258521 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/7b89868305052b94a91b708c462bc2281fa42a4a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/d61482be4aae1835b78875761206241835a7510e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.