CVE-2011-4864

The Tencent MobileQQ (com.tencent.mobileqq) application 2.2 for Android does not properly protect data, which allows remote attackers to read or modify messages and a friends list via a crafted application.

Published: 2012-01-25 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-4864 is rated Low Risk (38.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.24%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-4864

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 0.29% 0.24% -0.05%
2 2025-03-29 0.20% 0.29% +0.09%
3 2024-09-17 — 0.20% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-4864

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 4.9 [email protected]

Weakness enumeration for CVE-2011-4864

Affected software / configurations for CVE-2011-4864

Vendor Product Version Raw CPE
tencent mobileqq 2.2 cpe:2.3:a:tencent:mobileqq:2.2:*:*:*:*:*:*:*

References for CVE-2011-4864

cvelogic Threat Intelligence