THREATPORT/VULNERABILITY/CVE-2011-2577
HIGH SEVERITY

CVE-2011-2577

Telepresence Codec C40 vulnerability

CVSS
7.8
EPSS
12.7%
EPSS pct
96th
Exploited
No known
Unspecified vulnerability in Cisco TelePresence C Series Endpoints, E/EX Personal Video units, and MXP Series Codecs, when using software versions before TC 4.0.0 or F9.1, allows remote attackers to cause a denial of service (crash) via a crafted SIP packet to port 5060 or 5061, aka Bug ID CSCtq46500.
Affected vendor
Cisco
Affected product
Telepresence Codec C40
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Published
2011-08-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to availability.

Its EPSS score of 12.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2011-2577

  • Confirm whether Cisco Telepresence Codec C40 is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2011-2577.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-2577

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-2577 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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