CVE-2003-0870
Heap-based buffer overflow in Opera 7.11 and 7.20 allows remote attackers to execute arbitrary...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2003-0870- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2003-0870- Updated
- 2026-11-02
EUVDEUVD-2003-0860 No score
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.
- Record
EUVD-2003-0860- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4mv7-62g7-98v4 No score
Heap-based buffer overflow in Opera 7.11 and 7.20 allows remote attackers to execute arbitrary...
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.
- Record
GHSA-4mv7-62g7-98v4- Weakness
- CWE-787
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Opera 7.11/7.20 HREF - Malformed Server Name Heap Corruption | 2003-10-20 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2003-0870 is a high vulnerability (CVSS 7.5) in Opera Browser, published October 21, 2003. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 15.4%, the 96th percentile. No source names a fixed version.