CVE-2014-9766 [Critical] | Denial of Service in Pixman

CVE-2014-9766 is rated High Risk (66.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 5.57%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	10.74%	5.57%	-5.16%
2	2026-05-13	14.14%	10.74%	-3.41%
3	2025-12-28	—	14.14%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

10.74%

5.57%

-5.16%

2026-05-13

14.14%

10.74%

-3.41%

2025-12-28

—

14.14%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.8	3.0	CRITICAL	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	5.9	[email protected]
7.5	2.0	HIGH	`AV:N/AC:L/Au:N/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	10.0	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.8

3.0

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

3.9

5.9

[email protected]

7.5

2.0

HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

10.0

6.4

[email protected]

OS Trackers for CVE-2014-9766

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2014-9766 not yet assigned priority: Debian including 1 source packages (pixman), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2014-9766
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2014-9766
`suse`	medium	CVE-2014-9766 severity moderate: SUSE including 6 source package names (libpixman-1-0, libpixman-1-0-0.24.4-0.15.3.8, libpixman-1-0-32bit, libpixman-1-0-32bit-0.24.4-0.15.3.8, libpixman-1-0-devel, pixman), 66 product×package rows across 28 product lines (SUSE CaaS Platform 4.5, SUSE Enterprise Storage 7, … (28 product lines)): Known Not Affected 64, Fixed 2.	https://www.suse.com/security/cve/CVE-2014-9766/
`ubuntu`	medium	CVE-2014-9766 medium priority: Ubuntu including 1 source packages (pixman), 7 status rows across 7 suites (precise, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 4, released 3.	https://ubuntu.com/security/CVE-2014-9766

Affected software / configurations for CVE-2014-9766

Vendor	Product	Version	Raw CPE
pixman	pixman	<= 0.32.5	cpe:2.3:a:pixman:pixman::::::::
canonical	ubuntu_linux	12.04	cpe:2.3:o:canonical:ubuntu_linux:12.04::::lts:::
canonical	ubuntu_linux	14.04	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::

References for CVE-2014-9766

URL	Tags
http://www.debian.org/security/2016/dsa-3525
http://www.openwall.com/lists/oss-security/2016/02/24/13
http://www.openwall.com/lists/oss-security/2016/02/24/15
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.ubuntu.com/usn/USN-2918-1
https://bugs.freedesktop.org/show_bug.cgi?id=69014
https://bugzilla.redhat.com/show_bug.cgi?id=972647
https://cgit.freedesktop.org/pixman/commit/?id=857e40f3d2bc2cfb714913e0cd7e6184cf69aca3
https://lists.freedesktop.org/archives/pixman/2014-April/003244.html	Vendor Advisory
https://lists.x.org/archives/xorg-announce/2014-July/002452.html	Patch Vendor Advisory

URL

CVE-2014-9766

Exploit prediction scoring system (EPSS) score for CVE-2014-9766

Common vulnerability scoring system (CVSS) metrics for CVE-2014-9766

Weakness enumeration for CVE-2014-9766

OS Trackers for CVE-2014-9766

Affected software / configurations for CVE-2014-9766

References for CVE-2014-9766