CVE-2025-21761openvswitch: use RCU protection in ovs_vport_cmd_fill_info()
Updated under an hour ago ()
Does this affect you?
It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: openvswitch: use RCU protection in ovs_vport_cmd_fill_info() ovs_vport_cmd_fill_info() can be called without RTNL or RCU. Use RCU protection and dev_net_rcu() to avoid potential UAF.
- CVSS
- 7.8 HIGH (v3.1, CNA)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
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 9354d452034273a50a4fd703bea31e5d6b1fc20b before e85a25d1a9985645e796039e843d1de581d2de1e; from 9354d452034273a50a4fd703bea31e5d6b1fc20b before a8816b3f1f151373fd30f1996f00480126c8bb11; from 9354d452034273a50a4fd703bea31e5d6b1fc20b before a884f57600e463f69d7b279c4598b865260b62a1; 9354d452034273a50a4fd703bea31e5d6b1fc20b builds before 7e01abc34e87abd091e619161a20f54ed4e3e2da; 9354d452034273a50a4fd703bea31e5d6b1fc20b builds before 8ec57509c36c8b9a23e50b7858dda0c520a2d074; from 9354d452034273a50a4fd703bea31e5d6b1fc20b before a849a10de5e04d798f7f286a2f1ca174719a617a; from 9354d452034273a50a4fd703bea31e5d6b1fc20b before 5828937742af74666192835d657095d95c53dbd0; 9354d452034273a50a4fd703bea31e5d6b1fc20b builds before 90b2f49a502fa71090d9f4fe29a2f51fe5dff76d | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
linux linux_kernel linux:linux_kernel | from 4.15 before 5.4.291; from 5.5 before 5.10.235; from 5.11 before 5.15.179; from 5.16 before 6.1.129; from 6.2 before 6.6.79; from 6.7 before 6.12.16; from 6.13 before 6.13.4; 6.14; and 1 more ranges | NVD |
References
- https://git.kernel.org/stable/c/e85a25d1a9985645e796039e843d1de581d2de1epatch
- https://git.kernel.org/stable/c/a8816b3f1f151373fd30f1996f00480126c8bb11patch
- https://git.kernel.org/stable/c/a884f57600e463f69d7b279c4598b865260b62a1patch
- https://git.kernel.org/stable/c/7e01abc34e87abd091e619161a20f54ed4e3e2dapatch
- https://git.kernel.org/stable/c/8ec57509c36c8b9a23e50b7858dda0c520a2d074patch
- https://git.kernel.org/stable/c/a849a10de5e04d798f7f286a2f1ca174719a617apatch
- https://git.kernel.org/stable/c/5828937742af74666192835d657095d95c53dbd0patch
- https://git.kernel.org/stable/c/90b2f49a502fa71090d9f4fe29a2f51fe5dff76dpatch
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-784472.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.