CVE-2026-93107: Linux kernel · RDMA/rxe: Avoid reprocessing the current packet after the QP enters the error state
Affects Linux kernelSource CVE Database V5
Not known to be exploited · CVSS 8.2 High · fixed in c319b986a88cedf600c4497cd7814a891b2f9e7c : patch Linux kernel soon.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in c319b986a88cedf600c4497cd7814a891b2f9e7c, 399713f1f0eac641351c8ceaec0ab8244ddcf78c, 62a4b48767e06fdd64548450fae2b1ffc6ff5d69 +2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:HExploitation evidence
Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix for this vulnerability is available and included in Linux kernel version 6.4. Users and administrators should upgrade to this version or later to remediate the issue. No additional mitigation steps are indicated by the vendor advisory.
Description
CVE-2026-93107 is a high-severity vulnerability in the Linux kernel's RDMA/rxe subsystem. It involves improper handling of packets when a Queue Pair (QP) enters an error state, causing the same packet to be reprocessed multiple times. This leads to duplicate completions indistinguishable from legitimate receives, resulting in data stream corruption for user-level protocols relying on exactly-once delivery. The flaw can cause a kernel NULL pointer dereference and system instability. A fix has been implemented in Linux kernel version 6.4.
References
- git.kernel.org/stable/c/c319b986a88cedf600c4497cd7814a891b2f9e7c (opens in a new tab)
- git.kernel.org/stable/c/62a4b48767e06fdd64548450fae2b1ffc6ff5d69 (opens in a new tab)
- git.kernel.org/stable/c/399713f1f0eac641351c8ceaec0ab8244ddcf78c (opens in a new tab)
- git.kernel.org/stable/c/0d37e2503efd1069a74be740eadf63ea17c96810 (opens in a new tab)
- git.kernel.org/stable/c/15ae32c4a3551c4c9da457370bdfdd65d171e512 (opens in a new tab)