Is CVE-2009-4134 being actively exploited?

CVE-2009-4134 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-4134?

CVE-2009-4134 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2009-4134

MEDIUM · CVSS 5.0EPSS 4.4%EU EUVD

Buffer underflow in the rgbimg module in Python 2.5 allows remote attackers to cause a denial of service (application crash) via a large ZSIZE value in a black-and-white (aka B/W) RGB image that triggers an invalid pointer dereference.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-787
EPSS score: 4.4% (91th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-4104)
Published: May 27, 2010
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-4104 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

python / python

References

http://bugs.python.org/issue8678(Patch)
http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.html(Mailing List)
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html(Third Party Advisory)
http://secunia.com/advisories/42888(Broken Link)
http://secunia.com/advisories/43068(Broken Link)
http://secunia.com/advisories/43364(Broken Link)
http://support.apple.com/kb/HT4435(Third Party Advisory)
http://www.mandriva.com/security/advisories?name=MDVSA-2010:215(Broken Link)
http://www.redhat.com/support/errata/RHSA-2011-0027.html(Third Party Advisory)
http://www.redhat.com/support/errata/RHSA-2011-0260.html(Third Party Advisory)
http://www.securityfocus.com/bid/40361(Third Party Advisory, VDB Entry)
http://www.vupen.com/english/advisories/2011/0122(Third Party Advisory)
http://www.vupen.com/english/advisories/2011/0212(Third Party Advisory)
http://www.vupen.com/english/advisories/2011/0413(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=541698(Issue Tracking, Patch)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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