CVE-2020-3336
CVE-2020-3336 is a high-severity vulnerability in Cisco Roomos with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: High (CVSS 3.x base score 7.2)
- CVSS v2: 9.0
- EPSS exploit prediction: 2% (79th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Cisco Roomos
- Published:
- Last modified:
Description
A vulnerability in the software upgrade process of Cisco TelePresence Collaboration Endpoint Software and Cisco RoomOS Software could allow an authenticated, remote attacker to modify the filesystem to cause a denial of service (DoS) or gain privileged access to the root filesystem. The vulnerability is due to insufficient input validation. An attacker with administrative privileges could exploit this vulnerability by sending requests with malformed parameters to the system using the console, Secure Shell (SSH), or web API. A successful exploit could allow the attacker to modify the device configuration or cause a DoS.
Frequently asked questions
- What is CVE-2020-3336?
- A vulnerability in the software upgrade process of Cisco TelePresence Collaboration Endpoint Software and Cisco RoomOS Software could allow an authenticated, remote attacker to modify the filesystem to cause a denial of service (DoS) or gain privileged access to the root filesystem. The vulnerability is due to insufficient input validation. An attacker with administrative privileges could exploit this vulnerability by sending requests with malformed parameters to the system using the console, Secure Shell (SSH), or web API. A successful exploit could allow the attacker to modify the device configuration or cause a DoS.
- How severe is CVE-2020-3336?
- CVE-2020-3336 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-3336 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-3336?
- CVE-2020-3336 primarily affects Cisco Roomos. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-3336?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-3336 published?
- CVE-2020-3336 was published on 2020-06-18 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:a:cisco:roomos:-:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_collaboration_endpoint:*:*:*:*:*:*:*:*
More vulnerabilities in Cisco Roomos
- CVE-2019-15288 — High (CVSS 8.8): A vulnerability in the CLI of Cisco TelePresence Collaboration Endpoint (CE), Cisco TelePresence Codec (TC), and Cisco…
- CVE-2022-20783 — High (CVSS 7.5): A vulnerability in the packet processing functionality of Cisco TelePresence Collaboration Endpoint (CE) Software and…
- CVE-2019-15289 — High (CVSS 7.5): Multiple vulnerabilities in the video service of Cisco TelePresence Collaboration Endpoint (CE) and Cisco RoomOS…
- CVE-2022-20793 — Medium (CVSS 6.8): A vulnerability in pairing process of Cisco TelePresence CE Software and RoomOS Software for Cisco Touch 10…
- CVE-2023-20090 — Medium (CVSS 6.7): A vulnerability in Cisco TelePresence CE and RoomOS could allow an authenticated, local attacker to elevate privileges…
- CVE-2022-20794 — Medium (CVSS 6.5): Multiple vulnerabilities in the web engine of Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS…
All CVEs affecting Cisco Roomos →
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