CVE-2011-2577
CVE-2011-2577 is a high-severity vulnerability in Cisco Telepresence Codec C40 with a CVSS 2.0 base score of 7.8. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation.
Key facts
- Severity: High (CVSS 2.0 base score 7.8)
- EPSS exploit prediction: 13% (96th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Cisco Telepresence Codec C40
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2011-2577?
- 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.
- How severe is CVE-2011-2577?
- CVE-2011-2577 has a CVSS 2.0 base score of 7.8, rated high severity.
- Is CVE-2011-2577 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2011-2577?
- CVE-2011-2577 primarily affects Cisco Telepresence Codec C40. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2011-2577?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2011-2577 published?
- CVE-2011-2577 was published on 2011-08-31 and last updated on 2026-06-16.
References
- http://securityreason.com/securityalert/8387
- http://securityreason.com/securityalert/8389
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080b91395.shtml
- http://www.exploit-db.com/exploits/17871
- http://www.securityfocus.com/archive/1/519698/100/0/threaded
- http://www.securityfocus.com/bid/49392
- http://www.securitytracker.com/id?1025994
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69513
Affected products (19)
- cpe:2.3:h:cisco:telepresence_codec_c40:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:telepresence_codec_c60:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:telepresence_codec_c90:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:telepresence_ex60:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:telepresence_ex90:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_c_series_software:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_c_series_software:tc3.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_c_series_software:tc3.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_c_series_software:tc3.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_c_series_software:tc3.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_c_series_software:tc3.1.3:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:telepresence_6000_mxp:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:telepresence_9000_mxp:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mxp_software:f8.2:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mxp_software:f9.0:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mxp_software:f9.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_mxp_software:f9.0.2:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:telepresence_e20:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:telepresence_e20_software:te2.2.1:*:*:*:*:*:*:*
More vulnerabilities in Cisco Telepresence Codec C40
- CVE-2011-2543 — Critical (CVSS 9.0): Buffer overflow in the cuil component in Cisco Telepresence System Integrator C Series 4.x before TC4.2.0 allows remote…
- CVE-2013-3377 — High (CVSS 7.8): Cisco TelePresence TC Software before 5.1.7 and TE Software before 4.1.3 allow remote attackers to cause a denial of…