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CVE-2009-4071

18
FAUCET Score

CVE-2009-4071 describes a vulnerability in Opera versions prior to 10.10 where, with exception stacktraces enabled, scripting error messages from one website could be exposed to another. This cross-site information leakage could allow remote attackers to obtain sensitive data or conduct cross-site scripting (XSS) attacks. The vulnerability has a CVSS score of 5.8, indicating a medium severity with network access, medium attack complexity, and potential for partial confidentiality and integrity impact. 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
<= 10.10CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:*:beta_1:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:7.0:*:*:*:*:*:*:*
7.23CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:7.23:*:*:*:*:*:*:*
7.53CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:7.53:*:*:*:*:*:*:*
7.54CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:7.54:*:*:*:*:*:*:*

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
2.23%
Probability of exploitation in next 30 days
EPSS Percentile
81.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0223 is in the 69th percentile among its peer group of 19,958 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

osvdb.org / 60527
secunia.com / advisories/37469
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6385
opera.com / docs/changelogs/mac/1010
Patch
opera.com / docs/changelogs/unix/1010
Patch
opera.com / docs/changelogs/windows/1010
Patch
opera.com / support/kb/view/941
Vendor Advisory
securityfocus.com / bid/37089
vupen.com / english/advisories/2009/3297