CVE-2020-14374 [High] | Memory Corruption in Data Plane Development Kit

A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. A flawed bounds checking in the copy_data function leads to a buffer overflow allowing an attacker in a virtual machine to write arbitrary data to any address in the vhost_crypto application. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.17%	0.42%	+0.25%
2	2025-11-21	0.08%	0.17%	+0.09%
3	2025-11-18	—	0.08%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.17%

0.42%

+0.25%

2025-11-21

0.08%

0.17%

+0.09%

2025-11-18

—

0.08%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. 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.	2.0	6.0	[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

8.8

3.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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:C): Breaking this can reach past the original component and bite other resources—bigger blast radius.
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.

2.0

6.0

[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-2020-14374

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2020-14374 not yet assigned priority: Debian including 1 source packages (dpdk), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2020-14374
`redhat`	high	—	https://access.redhat.com/security/cve/CVE-2020-14374
`suse`	high	CVE-2020-14374 severity important: SUSE including 88 source package names (dpdk, dpdk-18.11.9-3.15.1, …), 132 product×package rows across 30 product lines (SUSE Linux Enterprise High Performance Computing 15-ESPOS, SUSE Linux Enterprise High Performance Computing 15-LTSS, … (30 product lines)): Fixed 117, Known Not Affected 15.	https://www.suse.com/security/cve/CVE-2020-14374/
`ubuntu`	medium	CVE-2020-14374 medium priority: Ubuntu including 1 source packages (dpdk), 5 status rows across 5 suites (bionic, focal, trusty, upstream, xenial): not-affected 2, DNE 1, needs-triage 1, released 1.	https://ubuntu.com/security/CVE-2020-14374

Affected software / configurations for CVE-2020-14374

Vendor	Product	Version	Raw CPE
dpdk	data_plane_development_kit	>= 18.02.1, < 18.11.10	cpe:2.3:a:dpdk:data_plane_development_kit::::::::
dpdk	data_plane_development_kit	>= 19.02, < 19.11.5	cpe:2.3:a:dpdk:data_plane_development_kit::::::::
canonical	ubuntu_linux	20.04	cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts:::
opensuse	leap	15.1	cpe:2.3:o:opensuse:leap:15.1:::::::*
opensuse	leap	15.2	cpe:2.3:o:opensuse:leap:15.2:::::::*

References for CVE-2020-14374

URL	Tags
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00004.html	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00006.html	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/04/1	Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/04/2	Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/04/5	Mailing List Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1879466	Issue Tracking Tool Signature
https://www.openwall.com/lists/oss-security/2020/09/28/3	Mailing List Patch Third Party Advisory

URL

CVE-2020-14374

Exploit prediction scoring system (EPSS) score for CVE-2020-14374

Common vulnerability scoring system (CVSS) metrics for CVE-2020-14374

Weakness enumeration for CVE-2020-14374

OS Trackers for CVE-2020-14374

Affected software / configurations for CVE-2020-14374

References for CVE-2020-14374