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CVE-2011-2577

42
FAUCET Score

CVE-2011-2577 is an unspecified vulnerability affecting Cisco TelePresence C Series Endpoints, E/EX Personal Video units, and MXP Series Codecs running software versions prior to TC 4.0.0 or F9.1. A remote attacker can trigger a denial of service (crash) by sending a specially crafted SIP packet to ports 5060 or 5061. This vulnerability has a CVSS score of 7.8, indicating high severity, as it requires no authentication or complex attack vectors and can lead to a complete loss of availability. While there is no evidence of active exploitation, a public exploit (EDB-17871) exists, though community discussion and media coverage are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:telepresence_codec_c40:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:telepresence_codec_c60:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:telepresence_codec_c90:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:telepresence_ex60:*:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:h:cisco:telepresence_ex90:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

AV:N/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
12.72%
Probability of exploitation in next 30 days
EPSS Percentile
95.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-17871 · Sep 19, 2011
This CVE's current EPSS score of 0.1272 is in the 94th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

securityreason.com / securityalert/8387
securityreason.com / securityalert/8389
exchange.xforce.ibmcloud.com / vulnerabilities/69513
cisco.com / en/US/products/products_security_advisory09186a0080b91395.shtml
Vendor Advisory
exploit-db.com / exploits/17871
Exploit
securityfocus.com / archive/1/519698/100/0/threaded
securityfocus.com / bid/49392
securitytracker.com / id