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CVE-2001-1491

25
FAUCET Score

CVE-2001-1491 describes a denial-of-service vulnerability in Opera 5.11, where a remote attacker can exhaust CPU resources and cause a memory leak by presenting a web page with an excessive number of images. Rated with a CVSS score of 5.0 (Medium), this vulnerability is easily exploitable over the network with low attack complexity, leading to a partial availability impact. While an ExploitDB entry exists (EDB-21181) demonstrating this issue across multiple browsers, there is no evidence of active exploitation, Metasploit modules, or significant community discussion surrounding this decades-old flaw.

Impacted Technologies

VendorProductVersion(s)CPE
5.1.1CPE matchmatch criteria
cpe:2.3:a:opera_software:opera_web_browser:5.1.1:*:win32:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.97%
Probability of exploitation in next 30 days
EPSS Percentile
93.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-21181 · Dec 11, 2001
This CVE's current EPSS score of 0.0697 is in the 91st percentile among its peer group of 23,684 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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/7709
securityfocus.com / archive/1/245152
securityfocus.com / bid/3684
Exploit