CVE-2021-33271

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function sub_80046EB4 in /formSetPortTr. This vulnerability is triggered via a crafted POST request.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Dec 1, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2021

CVE-2021-332749.8D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerabilityCVE-2021-33287.5An issue was discovered in Aprelium Abyss Web Server X1 2.12.1 and 2.14. A crafted HTTP request can lead to an out-of-bounds read that crashCVE-2021-332857.8In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value, a heap bufferCVE-2021-332867.8In NTFS-3G versions < 2021.8.22, when a specially crafted unicode string is supplied in an NTFS image a heap buffer overflow can occur and aCVE-2021-332877.8In NTFS-3G versions < 2021.8.22, when specially crafted NTFS attributes are read in the function ntfs_attr_pread_i, a heap buffer overflow cCVE-2021-332897.8In NTFS-3G versions < 2021.8.22, when a specially crafted MFT section is supplied in an NTFS image a heap buffer overflow can occur and alloCVE-2021-33296.5Lack of proper validation in HCI Host stack initialization can cause a crash of the bluetooth stackCVE-2021-332939.1Panorama Tools libpano13 v2.9.20 was discovered to contain an out-of-bounds read in the function panoParserFindOLine() in parser.c.CVE-2021-332945.5In elfutils 0.183, an infinite loop was found in the function handle_symtab in readelf.c .Which allows attackers to cause a denial of servicCVE-2021-332955.4Cross Site Scripting (XSS) vulnerability in Joplin Desktop App before 1.8.5 allows attackers to execute aribrary code due to improper sanitiCVE-2021-33308.8RCE/DOS: Linked-list corruption leading to large out-of-bounds write while sorting for forged fragment list in Zephyr. Zephyr versions >= >=CVE-2021-333049.8Double Free vulnerability in virtualsquare picoTCP v1.7.0 and picoTCP-NG v2.1 in modules/pico_fragments.c in function pico_fragments_reassem
CVE-2021-33271: Critical severity, CVSS 9.8 | Vulnix