peter bassill · operator
$ cve CVE-2009-1234 JSON

CVE-2009-1234 EXPLOIT

4.3
MEDIUM · CVSS 2.0 · EPSS 6.5% (pctl 94)

Patch early

A public exploit exists.

Description

Opera 9.64 allows remote attackers to cause a denial of service (application crash) via an XML document containing a long series of start-tags with no corresponding end-tags. NOTE: it was later reported that 9.52 is also affected.

Scoring

CVSS4.3 (MEDIUM, v2.0)
VectorAV:N/AC:M/Au:N/C:N/I:N/A:P
EPSS6.52% — more likely to be exploited than 94% of all CVEs
WeaknessCWE-20
On CISA KEVno
Public exploityes
Published2009-04-02
Last modified2026-06-16

Affected (1)

VendorProduct
operaopera browser

Public exploits

References

→ the Explorer  ·  watch your stack  ·  NVD