CVE-2003-0870

Name: CVE-2003-0870
Creator: NVD / NIST
Published: 2003-11-17T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 15.06%

Last modified Jun 16, 2026

CVE-2003-0870 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 15.06% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability

15.06%

96.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Opera	Opera Browser	7.11
Opera	Opera Browser	7.20

References

http://archives.neohapsis.com/archives/vulnwatch/2003-q4/0016.htmlBroken Link
http://www.atstake.com/research/advisories/2003/a102003-1.txtExploit, Patch, Vendor Advisory
http://www.securityfocus.com/bid/8853Broken Link, Exploit, Patch, Third Party Advisory, VDB Entry, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/13458Third Party Advisory, VDB Entry
http://archives.neohapsis.com/archives/vulnwatch/2003-q4/0016.htmlBroken Link
http://www.atstake.com/research/advisories/2003/a102003-1.txtExploit, Patch, Vendor Advisory
http://www.securityfocus.com/bid/8853Broken Link, Exploit, Patch, Third Party Advisory, VDB Entry, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/13458Third Party Advisory, VDB Entry

Timeline

Published: Nov 17, 2003
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2003-0870?

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.

How severe is CVE-2003-0870?

Severity scoring for CVE-2003-0870 is pending analysis. The EPSS model estimates a 15.06% probability of exploitation in the next 30 days.

How do I fix CVE-2003-0870?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2003-0870?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST