CVE-2014-9914 [High] | Denial of Service in Linux Kernel

Race condition in the ip4_datagram_release_cb function in net/ipv4/datagram.c in the Linux kernel before 3.15.2 allows local users to gain privileges or cause a denial of service (use-after-free) by leveraging incorrect expectations about locking during multithreaded access to internal data structures for IPv4 UDP sockets.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.04%	0.27%	+0.24%
2	2025-03-30	0.15%	0.04%	-0.11%
3	2025-03-29	—	0.15%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.04%

0.27%

+0.24%

2025-03-30

0.15%

0.04%

-0.11%

2025-03-29

—

0.15%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. 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:L) A normal user session is enough; they don’t have to be admin. 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.	1.8	5.9	[email protected]
7.2	2.0	HIGH	`AV:L/AC:L/Au:N/C:C/I:C/A:C` Click to expand Access vector (AV:L) Requires local access to the target system. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:C) Complete confidentiality impact. Integrity impact (I:C) Complete integrity impact. Availability impact (A:C) Complete availability impact.	3.9	10.0	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.8

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:L): A normal user session is enough; they don’t have to be admin.
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.

1.8

5.9

[email protected]

7.2

2.0

HIGH

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

Access vector (AV:L): Requires local access to the target system.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:C): Complete confidentiality impact.
Integrity impact (I:C): Complete integrity impact.
Availability impact (A:C): Complete availability impact.

3.9

10.0

[email protected]

OS Trackers for CVE-2014-9914

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2014-9914 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2014-9914
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2014-9914
`suse`	high	CVE-2014-9914 severity important: SUSE including 10 source package names (kernel-default, kernel-default-base, …), 267 product×package rows across 55 product lines (HPE Helion OpenStack 8, SLES for SAP Applications 11 SP3, … (55 product lines)): Known Not Affected 267.	https://www.suse.com/security/cve/CVE-2014-9914/
`ubuntu`	medium	CVE-2014-9914 medium priority: Ubuntu including 99 source packages (linux, linux-armadaxp, …), 805 status rows across 12 suites (artful, bionic, focal, jammy, noble, plucky, precise, trusty, upstream, xenial, yakkety, zesty): DNE 535, not-affected 137, released 101, ignored 32.	https://ubuntu.com/security/CVE-2014-9914

Affected software / configurations for CVE-2014-9914

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 3.7.8, < 3.10.45	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 3.11, < 3.12.23	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 3.13, < 3.14.9	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 3.15, < 3.15.2	cpe:2.3:o:linux:linux_kernel::::::::
google	android	<= 7.1.1	cpe:2.3:o:google:android::::::::

References for CVE-2014-9914

URL	Tags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9709674e68646cee5a24e3000b3558d25412203a	Issue Tracking Patch Third Party Advisory
http://source.android.com/security/bulletin/2017-02-01.html	Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.2	Release Notes Vendor Advisory
http://www.securityfocus.com/bid/96100	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037798	Third Party Advisory VDB Entry
https://github.com/torvalds/linux/commit/9709674e68646cee5a24e3000b3558d25412203a	Issue Tracking Patch Third Party Advisory

URL

CVE-2014-9914

Exploit prediction scoring system (EPSS) score for CVE-2014-9914

Common vulnerability scoring system (CVSS) metrics for CVE-2014-9914

Weakness enumeration for CVE-2014-9914

OS Trackers for CVE-2014-9914

Affected software / configurations for CVE-2014-9914

References for CVE-2014-9914