do_tcp_getsockopt(TCP_CC_INFO) · tcp: fix use-after-free
Affects MicrosoftSource GCVE Database
Not known to be exploited · fixed in 86814e5370068ec2bf0caa6e6d55c3e5bfc6c324 : patch Microsoft soon.
Data as of 29 Oct 2026, 11:48 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in 86814e5370068ec2bf0caa6e6d55c3e5bfc6c324, 385e474086c2e7e29e2dded690be40dc273e20ee, 39aa489e85752f9de214edb0f85e4d578e57af29
Exploitation evidence
Disclosed: evidence found.
CVE published 28 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 29 Oct 2026.
What to do
Upgrade Linux to 86814e5370068ec2bf0caa6e6d55c3e5bfc6c324, 385e474086c2e7e29e2dded690be40dc273e20ee or 39aa489e85752f9de214edb0f85e4d578e57af29.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
Linuxlinux/kernelpkg:deb/linux/kernelOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
A use-after-free vulnerability exists in the TCP implementation related to the do_tcp_getsockopt function when handling TCP_CC_INFO. This flaw could potentially lead to memory corruption or instability in affected software version 3.0.