CVE-2021-34758— Cisco TelePresence Collaboration Endpoint and RoomOS Software Denial of Service Vulnerability
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2021-34758
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Cisco TelePresence Collaboration Endpoint and RoomOS Software Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the memory management of Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an authenticated, local attacker to corrupt a shared memory segment, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient access controls to a shared memory resource. An attacker could exploit this vulnerability by corrupting a shared memory segment on an affected device. A successful exploit could allow the attacker to cause the device to reload. The device will recover from the corruption upon reboot.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
关键资源的不正确权限授予
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco RoomOS Software和Cisco TelePresence Collaboration Endpoint Software 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco RoomOS Software和Cisco TelePresence Collaboration Endpoint Software都是美国思科（Cisco）公司的产品。Cisco RoomOS Software是一套用于Cisco设备的自动管理软件。该软件主要用于升级、管理Cisco设备的主板固件。Cisco TelePresence Collaboration Endpoint Software是一套协作终端软件。 Cisco RoomOS Software和Cisco TelePrese
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco RoomOS Software | n/a | - |
II. Public POCs for CVE-2021-34758
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-34758
请登录查看更多情报信息。
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-tpce-rmos-mem-dos-rck56tTvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2021-34758
Same Patch Batch · Cisco · 2021-10-06 · 23 CVEs total
| CVE-2021-34710 | 8.8 HIGH | Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities |
| CVE-2021-34735 | 8.8 HIGH | Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities |
| CVE-2021-34748 | 8.8 HIGH | Cisco Intersight Virtual Appliance Command Injection Vulnerability |
| CVE-2021-34698 | 8.6 HIGH | Cisco Web Security Appliance Proxy Service Denial of Service Vulnerability |
| CVE-2021-1594 | 7.5 HIGH | Cisco Identity Services Engine Privilege Escalation Vulnerability |
| CVE-2021-34788 | 7.0 HIGH | Cisco AnyConnect Secure Mobility Client for Linux and Mac OS with VPN Posture (HostScan) M |
| CVE-2021-34706 | 6.4 MEDIUM | Cisco Identity Services Engine XML External Entity Injection Vulnerability |
| CVE-2021-34742 | 6.1 MEDIUM | Cisco Vision Dynamic Signage Director Reflected Cross-Site Scripting Vulnerability |
| CVE-2021-1534 | 5.8 MEDIUM | Cisco Email Security Appliance URL Filtering Bypass Vulnerability |
| CVE-2021-34711 | 5.5 MEDIUM | Cisco IP Phone Software Arbitrary File Read Vulnerability |
| CVE-2021-34766 | 5.4 MEDIUM | Cisco Smart Software Manager Privilege Escalation Vulnerability |
| CVE-2021-34744 | 4.9 MEDIUM | Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities |
| CVE-2021-34757 | 4.9 MEDIUM | Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities |
| CVE-2021-34772 | 4.7 MEDIUM | Cisco Orbital Open Redirect Vulnerability |
| CVE-2021-34775 | 4.3 MEDIUM | Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti |
| CVE-2021-34776 | 4.3 MEDIUM | Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti |
| CVE-2021-34777 | 4.3 MEDIUM | Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti |
| CVE-2021-34778 | 4.3 MEDIUM | Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti |
| CVE-2021-34779 | 4.3 MEDIUM | Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti |
| CVE-2021-34780 | 4.3 MEDIUM | Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti |
Showing top 20 of 23 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco RoomOS Software
- CVE-2026-20119
Cisco TelePresence Collaboration Endpoint Software and RoomO - CVE-2025-20329
Cisco TelePresence Collaboration Endpoint and RoomOS Softwar - CVE-2022-20793
Cisco Touch 10 Device Insufficient Identity Verification Vul - CVE-2023-20004
Cisco TelePresence Collaboration Endpoint and RoomOS Softwar - CVE-2023-20090
Cisco TelePresence Collaboration Endpoint and RoomOS Softwar
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-732
- CVE-2026-41288
WatchGuard Agent on Windows Privilege Escalation Vulnerabili - CVE-2026-41686
Claude SDK for TypeScript has Insecure Default File Permissi - CVE-2026-6499
ILM Informatique OpenConcerto 安全漏洞 - CVE-2026-41366
OpenClaw < 2026.3.31 - Arbitrary Host File Read via appendLo - CVE-2026-35367
uutils coreutils nohup Information Disclosure via Insecure D
V. Comments for CVE-2021-34758
No comments yet