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CVE-2011-4004

28
FAUCET Score

CVE-2011-4004 describes a critical buffer overflow vulnerability in the Cisco WebEx Recording Format (WRF) player, affecting versions T26 prior to SP49 EP40 and T27 prior to SP28. This flaw allows remote attackers to execute arbitrary code by enticing a user to open a specially crafted WRF file. With a CVSS score of 9.3, it represents a high-severity risk due to its network-based attack vector, low authentication requirements, and complete compromise of confidentiality, integrity, and availability. Despite its severity, there is no evidence of active exploitation, public exploit code (e.g., Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting it has not garnered widespread attention.

Impacted Technologies

VendorProductVersion(s)CPE
26CPE matchmatch criteria
cpe:2.3:a:cisco:webex_recording_format_player:26:*:*:*:*:*:*:*
27CPE matchmatch criteria
cpe:2.3:a:cisco:webex_recording_format_player:27:*:*:*:*:*:*:*
27.10CPE matchmatch criteria
cpe:2.3:a:cisco:webex_recording_format_player:27.10:*:*:*:*:*:*:*
27.12CPE matchmatch criteria
cpe:2.3:a:cisco:webex_recording_format_player:27.12:*:*:*:*:*:*:*
27.13CPE matchmatch criteria
cpe:2.3:a:cisco:webex_recording_format_player:27.13:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.81%
Probability of exploitation in next 30 days
EPSS Percentile
88.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0381 is in the 50th percentile among its peer group of 8,915 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20111026-webex
Vendor Advisory