TI-2018-00239 Aliases CVE-2018-0280 GHSA-xg5x-8687-g7x5

Improper input validation in Cisco Meeting Server Media Services

MEDIUM 45CWE-20Published 2018-05-17 · Updated 2024-11-29

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

A vulnerability in the Real-Time Transport Protocol (RTP) bitstream processing of the Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient input validation of incoming RTP bitstreams. An attacker could exploit this vulnerability by sending a crafted RTP bitstream to an affected Cisco Meeting Server. A successful exploit could allow the attacker to deny audio and video services by causing media process crashes resulting in a DoS condition on the affected product. This vulnerability affects Cisco Meeting Server deployments that are running Cisco Meeting Server Software Releases 2.0, 2.1, 2.2, and 2.3. Cisco Bug IDs: CSCve79693, CSCvf91393, CSCvg64656, CSCvh30725, CSCvi86363.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.03209 88th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

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 Meeting Server Media Services	Cisco Meeting Server Media Services	—	No fix listed	CNA

Cisco Meeting Server Media Services Vendor— Affected Cisco Meeting Server Media Services Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:meeting_server:2.0:::::::*	2.0	Vulnerable	Cisco
cpe:2.3:a:cisco:meeting_server:2.1:::::::*	2.1	Vulnerable	Cisco
cpe:2.3:a:cisco:meeting_server:2.2:::::::*	2.2	Vulnerable	Cisco
cpe:2.3:a:cisco:meeting_server:2.2.5:::::::*	2.2.5	Vulnerable	Cisco
cpe:2.3:a:cisco:meeting_server:2.2.8:::::::*	2.2.8	Vulnerable	Cisco
cpe:2.3:a:cisco:meeting_server:2.3:::::::*	2.3	Vulnerable	Cisco

cpe:2.3:a:cisco:meeting_server:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Cisco
cpe:2.3:a:cisco:meeting_server:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Cisco
cpe:2.3:a:cisco:meeting_server:2.2:*:*:*:*:*:*:* Versions 2.2 Vulnerable ·Cisco
cpe:2.3:a:cisco:meeting_server:2.2.5:*:*:*:*:*:*:* Versions 2.2.5 Vulnerable ·Cisco
cpe:2.3:a:cisco:meeting_server:2.2.8:*:*:*:*:*:*:* Versions 2.2.8 Vulnerable ·Cisco
cpe:2.3:a:cisco:meeting_server:2.3:*:*:*:*:*:*:* Versions 2.3 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-0280
2026-10-03 Alias added: GHSA-xg5x-8687-g7x5

References

Advisory 1

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-msms

TI-2016-05530 Memory corruption in Cisco Meeting Server before 2.0.3 and Acano Server before 1.9.5 CVSS 3.0CRITICAL 9.8
TI-2016-05529 Memory corruption in Cisco Meeting Server before 2.0.1, Acano Server before 1.9.3, Cisco… CVSS 3.0CRITICAL 9.8
TI-2017-09025 Exposure of resource to wrong sphere in Cisco Meeting Server CVSS 3.0CRITICAL 9.1
TI-2018-00222 A vulnerability in Cisco Meeting Server could allow an unauthenticated, remote attacker… CVSS 3.0HIGH 8.1
TI-2016-05527 Improper input validation in Cisco Meeting Server before 2.0.6 and Acano Server before… CVSS 3.0CRITICAL 9.1
TI-2018-11006 Cisco Meeting Server Information Disclosure Vulnerability CVSS 3.0HIGH 7.5

See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences