CVE-2021-34768: cisco ios xe

csirt@kutim:~/threat-intel/cve/CVE-2021-34768

CVSS 7.5 · High EPSS 1,4%

Kerentanan Double Free pada cisco ios xe. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

Multiple vulnerabilities in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to insufficient validation of CAPWAP packets. An attacker could exploit the vulnerabilities by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition.

Rincian

Terbit di NVD: 23 September 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-415: Double Free
EPSS (30 hari): 1,4% peluang dieksploitasi; lebih tinggi dari 71,6% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
cisco	ios xe	Versi 3.15.1xbs
cisco	ios xe	Versi 3.15.2xbs
cisco	ios xe	Versi 17.3.1
cisco	ios xe	Versi 17.3.2
cisco	ios xe	Versi 17.3.2a
cisco	ios xe	Versi 17.4.1
cisco	ios xe	Versi 17.5.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-capwap-dos-gmNjdKOY advisory vendor

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.