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CVE-2010-2121

18
FAUCET Score

CVE-2010-2121 describes a denial-of-service vulnerability in Opera 9.52. Remote attackers can exploit this by crafting JavaScript that creates an infinite loop of IFRAME elements pointing to invalid news:// or nntp:// URIs, leading to resource exhaustion. This vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and potential for partial availability impact, requiring network access and no authentication. 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
9.52CPE matchmatch criteria
cpe:2.3:a:opera:opera_browser:9.52:*:*:*:*:*:*:*

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
1.98%
Probability of exploitation in next 30 days
EPSS Percentile
78.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0198 is in the 63rd 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

oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11622
websecurity.com.ua / 4238
Exploit
securityfocus.com / archive/1/511509/100/0/threaded