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CVE-2012-4145

29
FAUCET Score

CVE-2012-4145 describes an unspecified, low-severity vulnerability affecting Opera browsers before version 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X. This vulnerability carries a critical CVSS score of 10.0, indicating a network-based attack with low complexity, requiring no authentication, and potentially leading to complete compromise of confidentiality, integrity, and availability. Despite its high theoretical severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 12.00CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:*:*:*:*:*:*:*:*
12.00CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:12.00:beta:*:*:*:*:*:*
<= 11.65CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:*:*:*:*:*:*:*:*
10.00CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:10.00:*:*:*:*:*:*:*
10.00CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:10.00:beta1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
2.19%
Probability of exploitation in next 30 days
EPSS Percentile
80.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0219 is in the 65th percentile among its peer group of 51,466 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Remediation records are not available for this CVE.

References

opera.com / docs/changelogs/mac/1166
opera.com / docs/changelogs/mac/1201
opera.com / docs/changelogs/unix/1201
opera.com / docs/changelogs/windows/1201