CVE-2021-34423

🗓️ 24 Nov 2021 17:15:07Reported by [email protected]Type

nvd

nvd🔗 web.nvd.nist.gov👁 25 Views

Buffer overflow CVE-2021-34423 in Zoom Client and related SDK

Reporter	Title	Published	Views	Family All 22
ATTACKERKB	CVE-2021-34423	24 Nov 202113:00	–	attackerkb
GithubExploit	Exploit for Server-Side Request Forgery in Microsoft	10 Aug 202115:01	–	githubexploit
GithubExploit	Exploit for Server-Side Request Forgery in Microsoft	29 Jun 202212:37	–	githubexploit
BDU FSTEC	The vulnerability of Zoom’s video conferencing software relates to the issue of operations going beyond the buffer in memory, allowing attackers to execute arbitrary code.	13 Dec 202100:00	–	bdu_fstec
Circl	CVE-2021-34423	2 Oct 202108:47	–	circl
CNNVD	ZOOM Client 安全漏洞	24 Nov 202100:00	–	cnnvd
CVE	CVE-2021-34423	24 Nov 202116:53	–	cve
Cvelist	CVE-2021-34423 Buffer overflow in Zoom client and other products	24 Nov 202116:53	–	cvelist
EUVD	EUVD-2021-21081	7 Oct 202500:30	–	euvd
GoogleProjectZero	Zooming in on Zero-click Exploits	18 Jan 202200:00	–	googleprojectzero

NVD

Node

AND

zoom meetingsRange<5.8.3

google androidMatch-

Node

AND

zoom meetingsRange<5.8.4

apple macosMatch-

Node

AND

zoom meetingsRange<5.8.4

apple iphone_osMatch-

Node

AND

zoom meetingsRange<5.8.4

linux linux_kernelMatch-

Node

AND

zoom meetingsRange<5.8.4

microsoft windowsMatch-

Node

AND

zoom meetings_for_blackberryRange<5.8.1

google androidMatch-

Node

AND

zoom meetings_for_blackberryRange<5.8.1

apple iphone_osMatch-

Node

AND

zoom meetings_for_intuneRange<5.8.4

apple iphone_osMatch-

Node

AND

zoom meetings_for_intuneRange<5.8.4

google androidMatch-

Node

zoom meetings_for_chrome_osRange<5.0.1

Node

AND

zoom rooms_for_conference_roomsRange<5.8.3

google androidMatch-

Node

AND

zoom rooms_for_conference_roomsRange<5.8.3

apple macosMatch-

Node

AND

zoom rooms_for_conference_roomsRange<5.8.3

microsoft windowsMatch-

Node

AND

zoom controllers_for_zoom_roomsRange<5.8.3

microsoft windowsMatch-

Node

AND

zoom controllers_for_zoom_roomsRange<5.8.3

apple iphone_osMatch-

Node

AND

zoom controllers_for_zoom_roomsRange<5.8.3

google androidMatch-

Node

zoom virtual_desktop_infrastructureRange<5.8.4

Node

OR

zoom android_meeting_sdkRange<5.7.6.1922

zoom iphone_os_meeting_sdkRange<5.7.6.1082

zoom macos_meeting_sdkRange<5.7.6.1340

zoom windows_meeting_sdkRange<5.7.6.1081

Node

OR

zoom android_video_sdkRange<1.1.2

zoom iphone_os_video_sdkRange<1.1.2

zoom macos_video_sdkRange<1.1.2

zoom windows_video_sdkRange<1.1.2

Node

OR

zoom hybrid_mmrRange<4.6.20211116.131

zoom hybrid_zproxyRange<1.0.1058.20211116

zoom zoom_on-premise_meeting_connector_controllerRange<4.8.12.20211115

zoom zoom_on-premise_meeting_connector_mmrRange<4.8.12.20211115

zoom zoom_on-premise_recording_connectorRange<5.1.0.65.20211116

zoom zoom_on-premise_virtual_room_connectorRange<4.4.7266.20211117

zoom zoom_on-premise_virtual_room_connector_load_balancerRange<2.5.5692.20211117

Node

OR

zoom vdi_azure_virtual_desktopRange<5.8.4.21112

zoom vdi_citrixRange<5.8.4.21112

zoom vdi_vmwareRange<5.8.4.21112

zoom vdi_windows_meeting_clientRange<5.8.4

Source	Link
packetstormsecurity	www.packetstormsecurity.com/files/165417/Zoom-Chat-Message-Processing-Buffer-Overflow.html
explore	www.explore.zoom.us/en/trust/security/security-bulletin

17 Jun 2026 03:55Current

CVSS 27.5

CVSS 3.19.8

CVSS 37.3

EPSS0.03207

buffer overflow cve-2021-34423 zoom client zoom meeting sdk vulnerability