csirt@kutim:~/threat-intel/cve/CVE-2021-30639

Katalog CVE

CVSS 7.5 · High EPSS 6,9%

Kerentanan Improper Handling of Exceptional Conditions pada apache tomcat, mcafee epolicy orchestrator +1 lainnya. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

A vulnerability in Apache Tomcat allows an attacker to remotely trigger a denial of service. An error introduced as part of a change to improve error handling during non-blocking I/O meant that the error flag associated with the Request object was not reset between requests. This meant that once a non-blocking I/O error occurred, all future requests handled by that request object would fail. Users were able to trigger non-blocking I/O errors, e.g. by dropping a connection, thereby creating the possibility of triggering a DoS. Applications that do not use non-blocking I/O are not exposed to this vulnerability. This issue affects Apache Tomcat 10.0.3 to 10.0.4; 9.0.44; 8.5.64.

Rincian

Terbit di NVD
12 Juli 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-755: Improper Handling of Exceptional Conditions
EPSS (30 hari)
6,9% peluang dieksploitasi; lebih tinggi dari 93,9% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
apache tomcat Versi 8.5.64
apache tomcat Versi 9.0.44
apache tomcat Versi 10.0.3
apache tomcat Versi 10.0.4
mcafee epolicy orchestrator Semua versi sebelum 5.10.0
mcafee epolicy orchestrator Versi 5.10.0
mcafee epolicy orchestrator Versi 5.10.0 update_1
mcafee epolicy orchestrator Versi 5.10.0 update_10
mcafee epolicy orchestrator Versi 5.10.0 update_2
mcafee epolicy orchestrator Versi 5.10.0 update_3
mcafee epolicy orchestrator Versi 5.10.0 update_4
mcafee epolicy orchestrator Versi 5.10.0 update_5
mcafee epolicy orchestrator Versi 5.10.0 update_6
mcafee epolicy orchestrator Versi 5.10.0 update_7
mcafee epolicy orchestrator Versi 5.10.0 update_8
mcafee epolicy orchestrator Versi 5.10.0 update_9
oracle big data spatial and graph Semua versi sebelum 23.1

> Data dari konfigurasi CPE 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.