CVE-2001-1491

Exp

Opera 5.11 allows remote attackers to cause a denial of service (CPU consumption and memory leak) via a web page with a large number of images.

Published: 2001-12-31 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-1491 is rated High Exploit Risk (67/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.72%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2001-1491

EDB-ID Source Kind Published Link
21181 exploit_db edb 2001-12-11 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2001-1491

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-07-20 3.84% 4.72% +0.88%
2 2025-03-30 3.89% 3.84% -0.06%
3 2025-03-29 — 3.89% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-1491

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2001-1491

Affected software / configurations for CVE-2001-1491

Vendor Product Version Raw CPE
opera_software opera_web_browser 5.1.1 cpe:2.3:a:opera_software:opera_web_browser:5.1.1:*:win32:*:*:*:*:*

References for CVE-2001-1491

cvelogic Threat Intelligence