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CVE-2008-5679

24
FAUCET Score

CVE-2008-5679 describes a critical heap corruption vulnerability in Opera versions prior to 9.63, stemming from an invalid pointer calculation within its HTML parsing engine. This flaw allows remote attackers to achieve arbitrary code execution through specially crafted web pages. With a CVSS score of 9.3, it represents a high-severity risk, requiring no authentication and moderate attack complexity, leading to complete compromise of confidentiality, integrity, and availability. There is currently no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:opera:opera:*:*:*:*:*:*:*:*
<= 9.62CPE matchmatch criteria
cpe:2.3:a:opera:opera:*:*:*:*:*:*:*:*
5..10CPE matchmatch criteria
cpe:2.3:a:opera:opera:5..10:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:opera:opera:5.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:opera:opera:5.0:beta_2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

AV:N/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.27%
Probability of exploitation in next 30 days
EPSS Percentile
87.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0327 is in the 46th percentile among its peer group of 8,914 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/34294
security.gentoo.org / glsa/glsa-200903-30.xml
securityreason.com / securityalert/4791
nruns.com / security_advisory_opera_html_parsing_code_execution.php
opera.com / docs/changelogs/linux/963
opera.com / support/kb/view/921
securityfocus.com / archive/1/499315/100/0/threaded
securitytracker.com / id