Vulnerability details
CVE-2026-45988
Linux Linux
rxrpc: Fix re-decryption of RESPONSE packets
CVSS 3.1
9.8Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 2.6.22 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 17926a79320afa9b95df6b977b40cca6d8713cea ≤ v < d61482be4aae1835b78875761206241835a7510e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 17926a79320afa9b95df6b977b40cca6d8713cea ≤ v < 7b89868305052b94a91b708c462bc2281fa42a4a | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 17926a79320afa9b95df6b977b40cca6d8713cea ≤ v < 76cb9a2d252274adfae6e293a292434631a7d472 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 17926a79320afa9b95df6b977b40cca6d8713cea ≤ v < f55b383070170e988e4dec28be2af1714d258521 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 17926a79320afa9b95df6b977b40cca6d8713cea ≤ v < 0422e7a4883f25101903f3e8105c0808aa5f4ce9 | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://git.kernel.org/stable/c/d61482be4aae1835b78875761206241835a7510e
- https://git.kernel.org/stable/c/7b89868305052b94a91b708c462bc2281fa42a4a
- https://git.kernel.org/stable/c/76cb9a2d252274adfae6e293a292434631a7d472
- https://git.kernel.org/stable/c/f55b383070170e988e4dec28be2af1714d258521
- https://git.kernel.org/stable/c/0422e7a4883f25101903f3e8105c0808aa5f4ce9
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Details
- Published
- 2026-05-27
- Last updated
- 2026-10-19
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.45%
Probability of exploitation in 30 days
39.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-682Incorrect Calculation