CVE-2025-37914
highpriority · track · 31EPSS 0.002 · 14 %ileDEEURUUSEPSS · scored 2026-10-25
In the Linux kernel, the following vulnerability has been resolved: net_sched: ets: Fix double list add in class with netem as child qdisc As described in Gerrard's report [1], there are use cases where a netem child qdisc will make the parent qdisc's enqueue callback reentrant. In the case of ets, there won't be a UAF, but the code will add the same classifier to the list twice, which will cause memory corruption. In addition to checking for qlen being zero, this patch checks whether the class was already added to the active_list (cl_is_active) before doing the addition to cater for the reentrant case. [1] https://lore.kernel.org/netdev/CAHcdcOm+03OD2j6R0=YHKqmy=VgJ8xEOKuP6c7mSgnp-TEJJbw@mail.gmail.com/
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.5–7.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (69)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-1114Linux Kernel: Mehrere SchwachstellenDeutsch2025-05-20csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff und weitere nicht spezifizierte Angriffe durchzuführen.
- WID-SEC-W-2025-2043IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2025-09-11csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um beliebigen Programmcode auszuführen, einen Denial of Service Zustand zu erzeugen, um Dateien zu manipulieren und um nicht nächer spezifizierte Auswirkungen zu erzielen..
also known as (4)
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sources
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references (25)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-37914cnnvd
- https://git.kernel.org/stable/c/1a6d0c00fa07972384b0c308c72db091d49988b6cnnvd
- https://git.kernel.org/stable/c/1f01e9f961605eb397c6ecd1d7b0233dfbf9077ccnnvd
- https://git.kernel.org/stable/c/554acc5a2ea9703e08023eb9a003f9e5a830a502cnnvd
- https://git.kernel.org/stable/c/72c3da7e6ceb74e74ddbb5a305a35c9fdfcac6e3cnnvd
- https://git.kernel.org/stable/c/9efb6a0fa88e0910d079fdfeb4f7ce4d4ac6c990cnnvd
- https://git.kernel.org/stable/c/bc321f714de693aae06e3786f88df2975376d996cnnvd
- https://vigilance.fr/vulnerability/Linux-kernel-multiple-vulnerabilities-dated-21-05-2025-47223cnnvd
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