csirt@kutim:~/threat-intel/cve/CVE-2021-0259

Katalog CVE

CVSS 7.4 · High EPSS 0,38%

Kerentanan Improper Handling of Exceptional Conditions pada juniper junos. Skor CVSS 3.1 7.4 (High) menurut juniper.net.

Deskripsi (NVD)

Due to a vulnerability in DDoS protection in Juniper Networks Junos OS and Junos OS Evolved on QFX5K Series switches in a VXLAN configuration, instability might be experienced in the underlay network as a consequence of exceeding the default ddos-protection aggregate threshold. If an attacker on a client device on the overlay network sends a high volume of specific, legitimate traffic in the overlay network, due to an improperly detected DDoS violation, the leaf might not process certain L2 traffic, sent by spines in the underlay network. Continued receipt and processing of the high volume traffic will sustain the Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS on QFX5K Series: 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R2-S8, 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R1-S2, 20.3R2. Juniper Networks Junos OS Evolved on QFX5220: All versions prior to 20.3R2-EVO.

Rincian

Terbit di NVD
22 April 2021
Terakhir diubah
17 Juni 2026
Status NVD
Modified
CVSS 3.1
7.4 (High), sumber juniper.net
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-755: Improper Handling of Exceptional Conditions
EPSS (30 hari)
0,38% peluang dieksploitasi; lebih tinggi dari 30,3% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
juniper junos Versi 17.3
juniper junos Versi 17.3 r1
juniper junos Versi 17.3 r1-s1
juniper junos Versi 17.3 r1-s4
juniper junos Versi 17.3 r2
juniper junos Versi 17.3 r2-s1
juniper junos Versi 17.3 r2-s2
juniper junos Versi 17.3 r2-s3
juniper junos Versi 17.3 r2-s4
juniper junos Versi 17.3 r2-s5
juniper junos Versi 17.3 r3
juniper junos Versi 17.3 r3-s1
juniper junos Versi 17.3 r3-s10
juniper junos Versi 17.3 r3-s2
juniper junos Versi 17.3 r3-s3
juniper junos Versi 17.3 r3-s4
juniper junos Versi 17.3 r3-s5
juniper junos Versi 17.3 r3-s6
juniper junos Versi 17.3 r3-s7
juniper junos Versi 17.3 r3-s8
juniper junos Versi 17.3 r3-s9
juniper junos Versi 17.4
juniper junos Versi 17.4 r1
juniper junos Versi 17.4 r1-s1
juniper junos Versi 17.4 r1-s2
juniper junos Versi 17.4 r1-s3
juniper junos Versi 17.4 r1-s4
juniper junos Versi 17.4 r1-s5
juniper junos Versi 17.4 r1-s6
juniper junos Versi 17.4 r1-s7
juniper junos Versi 17.4 r2
juniper junos Versi 17.4 r2-s1
juniper junos Versi 17.4 r2-s10
juniper junos Versi 17.4 r2-s11
juniper junos Versi 17.4 r2-s2
juniper junos Versi 17.4 r2-s3
juniper junos Versi 17.4 r2-s4
juniper junos Versi 17.4 r2-s5
juniper junos Versi 17.4 r2-s6
juniper junos Versi 17.4 r2-s7
juniper junos Versi 17.4 r2-s8
juniper junos Versi 17.4 r2-s9
juniper junos Versi 17.4 r3
juniper junos Versi 17.4 r3-s1
juniper junos Versi 17.4 r3-s2
juniper junos Versi 17.4 r3-s3
juniper junos Versi 17.4 r3-s4
juniper junos Versi 18.1
juniper junos Versi 18.1 r1
juniper junos Versi 18.1 r2
juniper junos Versi 18.1 r2-s1
juniper junos Versi 18.1 r2-s2
juniper junos Versi 18.1 r2-s4
juniper junos Versi 18.1 r3
juniper junos Versi 18.1 r3-s1
juniper junos Versi 18.1 r3-s10
juniper junos Versi 18.1 r3-s11
juniper junos Versi 18.1 r3-s12
juniper junos Versi 18.1 r3-s2
juniper junos Versi 18.1 r3-s3

> Data dari konfigurasi CPE di NVD. Ditampilkan 60 dari 194 konfigurasi; daftar lengkap ada di NVD.

Referensi dan perbaikan

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.