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CVE-2009-2540

16
FAUCET Score

CVE-2009-2540 describes a denial-of-service vulnerability in Opera, specifically versions 9.64 and earlier. Remote attackers can exploit this by providing a large integer value for the length property of a Select object, leading to excessive memory consumption. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and potential for partial availability impact, with no authentication required. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 9.64CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.05%
Probability of exploitation in next 30 days
EPSS Percentile
86.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0305 is in the 79th 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

exchange.xforce.ibmcloud.com / vulnerabilities/52874
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5957
Broken Link
exploit-db.com / exploits/9160
ExploitThird Party AdvisoryVDB Entry
g-sec.lu / one-bug-to-rule-them-all.html
Broken LinkExploit
securityfocus.com / archive/1/504969/100/0/threaded
Broken LinkThird Party AdvisoryVDB Entry
securityfocus.com / archive/1/504988/100/0/threaded
Broken LinkThird Party AdvisoryVDB Entry
securityfocus.com / archive/1/504989/100/0/threaded
Broken LinkThird Party AdvisoryVDB Entry
securityfocus.com / archive/1/505006/100/0/threaded
Broken LinkThird Party AdvisoryVDB Entry