// For flags

CVE-2003-0870

Opera 7.11/7.20 HREF - Malformed Server Name Heap Corruption

Severity Score

9.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

3
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Heap-based buffer overflow in Opera 7.11 and 7.20 allows remote attackers to execute arbitrary code via an HREF with a large number of escaped characters in the server name.

Desbordamiento de búfer en Opera 7.11 y 7.20 permite a atacantes remotos ejecutar código arbitrario mediante un HREF con un número de largo de caractéres escapados en el nombre del servidor.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2003-10-17 CVE Reserved
  • 2003-10-20 First Exploit
  • 2003-10-21 CVE Published
  • 2024-08-08 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Opera
Search vendor "Opera"
 Opera Browser
Search vendor "Opera" for product "Opera Browser"
 7.11
Search vendor "Opera" for product "Opera Browser" and version "7.11"
-
Affected
Opera
Search vendor "Opera"
 Opera Browser
Search vendor "Opera" for product "Opera Browser"
 7.20
Search vendor "Opera" for product "Opera Browser" and version "7.20"
-
Affected