Resource allocation without limits in Cisco TelePresence Video Communication Server…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-770.
Summary
A vulnerability in the file descriptor handling of Cisco TelePresence Video Communication Server (VCS) Expressway could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to exhaustion of file descriptors while processing a high volume of traffic. An attacker could exploit this vulnerability by establishing a high number of concurrent TCP connections to the vulnerable system. An exploit could allow the attacker to cause a restart in a specific process, resulting in a temporary interruption of service. Cisco Bug IDs: CSCvh77056, CSCvh77058, CSCvh95264.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Cisco TelePresence Video Communication Server unknown | Cisco TelePresence Video Communication Server unknown | — | No fix listed | CNA |
- Cisco TelePresence Video Communication Server unknown Vendor— Affected Cisco TelePresence Video Communication Server unknown Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0358
- 2026-10-03 Alias added: GHSA-hfw2-jvj9-frm4
References
More Cisco Telepresence Video Communication Server vulnerabilities
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2023-06915 Code injection in Cisco TelePresence Video Communication Server Expressway CVSS 3.1HIGH 7.2
- TI-2019-01468 Improper input validation in Cisco TelePresence Video Communication Server CVSS 3.0HIGH 8.6
- TI-2022-05314 Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities CVSS 3.1CRITICAL 9.0
- TI-2022-05313 Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities CVSS 3.1CRITICAL 9.0
- TI-2022-05371 Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities CVSS 3.1CRITICAL 9.0
Sources
- CVE-2018-0358 · CVE Program
- CVE-2018-0358 · NVD
- FIRST EPSS
- GHSA-hfw2-jvj9-frm4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences