CVE-2023-32233In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory.
Updated under an hour ago ()
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It affects Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem and 3 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.
- CVSS
- 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- 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 | from 3.13 before 4.14.315; from 4.15 before 4.19.283; from 4.20 before 5.4.243; from 5.5 before 5.10.180; from 5.11 before 5.15.111; from 5.16 before 6.1.28; from 6.2 before 6.2.15; from 6.3 before 6.3.2 | NVD |
redhat enterprise_linux redhat:enterprise_linux | 7.0; 8.0; 9.0 | NVD |
netapp hci_baseboard_management_controller netapp:hci_baseboard_management_controller | h300s; h410c; h410s; h500s; h700s | NVD |
References
- https://www.openwall.com/lists/oss-security/2023/05/08/4mailing-list, patch, third-party-advisory
- https://github.com/torvalds/linux/commit/c1592a89942e9678f7d9c8030efa777c0d57edabpatch
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1592a89942e9678f7d9c8030efa777c0d57edabmailing-list, patch
- https://news.ycombinator.com/item?id=35879660issue-tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=2196105issue-tracking, mitigation, third-party-advisory
- https://www.debian.org/security/2023/dsa-5402vendor-advisory, mailing-list, third-party-advisory
- http://www.openwall.com/lists/oss-security/2023/05/15/5mailing-list, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00008.htmlmailing-list, third-party-advisory
- https://security.netapp.com/advisory/ntap-20230616-0002/mailing-list, third-party-advisory
- http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.htmlpatch, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2023/07/msg00030.htmlmailing-list, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
- https://cert-portal.siemens.com/productcert/html/ssa-806742.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.