THREATPORT/VULNERABILITY/CVE-2011-3184
MEDIUM SEVERITY

CVE-2011-3184

Pidgin vulnerability

CVSS
4.3
EPSS
3.9%
EPSS pct
89th
Exploited
No known
The msn_httpconn_parse_data function in httpconn.c in the MSN protocol plugin in libpurple in Pidgin before 2.10.0 does not properly handle HTTP 100 responses, which allows remote attackers to cause a denial of service (incorrect memory access and application crash) via vectors involving a crafted server message.
Affected vendor
Pidgin
Affected product
Pidgin
CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness type (CWE)
Published
2011-08-29

Risk analysis

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

Its EPSS score of 3.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2011-3184

  • Confirm whether Pidgin Pidgin is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2011-3184.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-3184

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-3184 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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