How severe is CVE-2009-3100?

CVE-2009-3100 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2009-3100 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-3100?

CVE-2009-3100 primarily affects X.org X11. In total, 34 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-3100?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-3100 published?

CVE-2009-3100 was published on 2009-09-08 and last updated on 2026-06-16.

CVE-2009-3100

CVE-2009-3100 is a medium-severity vulnerability in X.org X11 with a CVSS 2.0 base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: X.org X11
Published: 2009-09-08
Last modified: 2026-06-16

Description

xscreensaver (aka Gnome-XScreenSaver) in Sun Solaris 9 and 10, OpenSolaris snv_109 through snv_122, and X11 6.4.1 on Solaris 8 does not properly handle Accessibility support, which allows local users to cause a denial of service (system hang) by locking the screen and then attempting to launch an Accessibility pop-up window, related to a regression in certain Solaris and OpenSolaris patches.

Frequently asked questions

What is CVE-2009-3100?: xscreensaver (aka Gnome-XScreenSaver) in Sun Solaris 9 and 10, OpenSolaris snv_109 through snv_122, and X11 6.4.1 on Solaris 8 does not properly handle Accessibility support, which allows local users to cause a denial of service (system hang) by locking the screen and then attempting to launch an Accessibility pop-up window, related to a regression in certain Solaris and OpenSolaris patches.
How severe is CVE-2009-3100?: CVE-2009-3100 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2009-3100 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-3100?: CVE-2009-3100 primarily affects X.org X11. In total, 34 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-3100?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-3100 published?: CVE-2009-3100 was published on 2009-09-08 and last updated on 2026-06-16.

References

Affected products (34)

cpe:2.3:o:sun:opensolaris:snv_109:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_109:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_110:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_110:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_111:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_111:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_112:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_112:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_113:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_113:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_114:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_114:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_115:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_115:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_116:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_116:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_117:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_117:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_118:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_118:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_119:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_119:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_120:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_120:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_121:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_121:*:x86:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_122:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:opensolaris:snv_122:*:x86:*:*:*:*:*
cpe:2.3:o:sun:solaris:9:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:solaris:9:*:x86:*:*:*:*:*
cpe:2.3:o:sun:solaris:10:*:sparc:*:*:*:*:*
cpe:2.3:o:sun:solaris:10:*:x86:*:*:*:*:*
cpe:2.3:a:x.org:x11:6.4.1:*:*:*:*:*:*:*
cpe:2.3:o:sun:solaris:8:*:sparc:*:*:*:*:*

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