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CVE-2012-5816

19
FAUCET Score

CVE-2012-5816 describes a critical vulnerability in AOL Instant Messenger (AIM) version 1.0.1.2, where the application fails to properly validate SSL server certificates. This flaw allows man-in-the-middle attackers to spoof legitimate SSL servers using any valid certificate, regardless of whether the hostname matches. The vulnerability has a CVSS score of 5.8, indicating a medium severity with a network attack vector, medium attack complexity, and potential for partial confidentiality and integrity compromise. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.1.2CPE matchmatch criteria
cpe:2.3:a:aol:aim:1.0.1.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.57%
Probability of exploitation in next 30 days
EPSS Percentile
43.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0057 is in the 7th percentile among its peer group of 19,955 CVEs.

Social Chatter

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

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/79935
cs.utexas.edu / ~shmat/shmat_ccs12.pdf
Exploit