VulDB 🛡@vuldb
🚨 It is possible to see elevated activities targeting Linux Kernel (CVE-2026-100080) vuldb.com/vuln/432077/cti https://t.co/0T6jmMMd4e
0000060
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CVE-2026-100080
LOWSignal is active with 1 mentions in latest observed window
Immediate actions
- Track advisory updates for patch or workaround availability
Recommended action window: Monitor and triage in normal cycle
NVD description
In the Linux kernel, the following vulnerability has been resolved: xen-netback: Fix UAF when reading statistics data The network statistic data in the driver is protected by RCU. Unfortunately when tearing down the queues after an error during connecting to the frontend (e.g. due to illegal Xenstore data filled in by the guest), the statistic data is being freed without synchronizing the RCU state. In case the data is being read via sysfs in this phase, access to already freed memory or memory being in new use is possible. Fix that by calling synchronize_net() before freeing the queue data. This is XSA-526 / CVE-2026-100080
0.0/ 10 priority
Sources & remediation
Other references
- https://git.kernel.org/stable/c/36f858f228e3f955b9336af7f94634747c221518
- https://git.kernel.org/stable/c/37d5a73170579b30e67cc8b19ec69715eea3a6b6
- https://git.kernel.org/stable/c/4223b33be49ee09acb6f1d26beb4a36dd3b8d63a
- https://git.kernel.org/stable/c/4867687b6ad28ab84bc0811d8f8f9972e769da02
- https://git.kernel.org/stable/c/6cd611d2abdd8623a554e14145f82c1cb4e4467a
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
STABLE
Threat summary
- 2 mentions across 2 observed days
- Momentum state: stable
What's happening
- Peaked 1d ago at 1 mentions (2026-11-06); latest day: 1
- 2 total mentions across 2 days
Deep dive
Activity timeline2 mentions / 2d
Full discourse2 posts
- VulDB 🛡@vuldb
⚠️ A new vulnerability with increased severity was disclosed for Linux Kernel (CVE-2026-100080) vuldb.com/vuln/432077 https://t.co/Z5G3ySuMKG
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