CVE-2026-20004 in IOS XE
Сводка (Английский)
A vulnerability in the TLS library of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to exhaust the available memory of an affected device.
This vulnerability is due to improper management of memory resources during TLS connection setup. An attacker could exploit this vulnerability by repeatedly triggering the conditions that cause the memory increase. This could be done in a variety of ways, such as by repeatedly attempting Extensible Authentication Protocol (EAP) authentication when local EAP is enabled on an affected device or by using a machine-in-the-middle attack and resetting TLS connections between the affected device and other devices. A successful exploit could allow the attacker to exhaust the available memory on an affected device, resulting in an unexpected reload and a denial of service (DoS) condition.
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Ответственный
cisco
Резервировать
08.10.2025
Раскрытие
25.03.2026
Статус
Подтверждённый
Записи
VulDB provides additional information and datapoints for this CVE:
| ИД | Уязвимость | CWE | Экс | Кон | CVE |
|---|---|---|---|---|---|
| 353181 | Cisco IOS XE Extensible Authentication Protocol отказ в обслуживании | 771 | Не определено | Официальное исправление | CVE-2026-20004 |