CVE-2026-52921
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ipset: stop hash:* range iteration at end
The following hash set variants:
hash:ip,mark hash:ip,port hash:ip,port,ip hash:ip,port,net
iterate IPv4 ranges with a 32-bit iterator.
The iterator must stop once the last address in the requested range has been processed. Advancing it once more can move the traversal state past the end of the request, so a later retry may continue from an unintended position.
Handle the iterator increment explicitly at the end of the loop and stop once the upper bound has been processed. This keeps the existing retry behaviour intact for valid ranges while preventing traversal from continuing past the original boundary.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.16%
- Percentil entre todas las CVEs puntuadas: 5
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-835
Referencias
- https://git.kernel.org/stable/c/02f75f041a93ea045834da89cd3234f4c1d749b4
- https://git.kernel.org/stable/c/0b530efb2cc9dbdddfd49d392e3a857f0d4ce8dc
- https://git.kernel.org/stable/c/0d3a282ab5f165fc207ff49ea5b6ad8f54616bd6
- https://git.kernel.org/stable/c/0d7b33ace701fe397e6e4de145f32e098178d901
- https://git.kernel.org/stable/c/383418c20e69f5761b6ec5238f599423f4fb77fb
- https://git.kernel.org/stable/c/952e988163c2ab9939c3db9f0f8e77af6a1bb436
- https://git.kernel.org/stable/c/be75218fadea22e59c8673db212f29c681bf45bb
- https://git.kernel.org/stable/c/c281e018af98df91827d65bec00f4956c00a1b02
JSON original (NVD)
Mostrar
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