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CVE-2021-40122

Status: ModifiedHigh (7.5)—

A vulnerability in an API of the Call Bridge feature of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper handling of large series of message requests. An attacker could exploit this vulnerability by sending a series of messages to the vulnerable API. A successful exploit could allow the attacker to cause the affected device to reload, dropping all ongoing calls and resulting in a DoS condition.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Cisco — Meeting Server

CWEs

References

Raw JSON (NVD)

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  "id": "CVE-2021-40122",
  "cveTags": [],
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          "timestamp": "2024-11-07T21:39:54.390567Z"
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  "published": "2021-10-21T03:15:07.270",
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    },
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    }
  ],
  "lastModified": "2026-06-17T04:06:33.800",
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