CVE-2007-6523

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2007-12-24 · updated 2026-06-16
Weakness: CWE-189

Description

Algorithmic complexity vulnerability in Opera 9.50 beta and 9.x before 9.25 allows remote attackers to cause a denial of service (CPU consumption) via a crafted bitmap (BMP) file that triggers a large number of calculations and checks.

Affected products

Opera Browser: 9.0, 9.0-beta1, 9.0-beta2, 9.01, 9.02, 9.10 (+8)

References

http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00001.html
http://secunia.com/advisories/28314
http://securityreason.com/securityalert/3482
http://www.securityfocus.com/archive/1/484605/100/200/threaded
http://www.securityfocus.com/bid/26721
http://www.vupen.com/english/advisories/2007/4261
http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00001.html
http://secunia.com/advisories/28314
http://securityreason.com/securityalert/3482
http://www.securityfocus.com/archive/1/484605/100/200/threaded
http://www.securityfocus.com/bid/26721
http://www.vupen.com/english/advisories/2007/4261

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