CVE-2022-1012A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size.
Updated under an hour ago ()
Does this affect you?
It affects Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem.
- CVSS
- 8.2 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- Weakness (CWE)
- CWE-401
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | before V1.1 | CISA ADP |
linux linux_kernel linux:linux_kernel | before 5.18; 5.18; 5.18; 5.18; 5.18; 5.18; 5.18 | NVD |
References
- https://lore.kernel.org/lkml/20220427065233.2075-1-w%401wt.eu/T/
- https://bugzilla.redhat.com/show_bug.cgi?id=2064604issue-tracking, third-party-advisory
- https://security.netapp.com/advisory/ntap-20221020-0006/third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-561322.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.