What is CVE-2017-7889?

CVE-2017-7889 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2017-7889 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-7889?

CVE-2017-7889 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2017-7889?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-7889 patch availability.

Is CVE-2017-7889 actively exploited?

CVE-2017-7889 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2017-7889

High

The mm subsystem in the Linux kernel through 3.2 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.

Package Linux Kernel

Published 2017-04-17

Last modified 2026-05-13

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-732

CVE-2017-7889 is classified as CWE-732

See CWE-732 on MITRE CWE for full details on this weakness type.

References

12 total

Kernel Git
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a4866aa812518ed1a37d8ea0c881dc946409de94

Issue Tracking Patch Third Party Advisory
Openwall
http://www.openwall.com/lists/oss-security/2017/04/16/4

Mailing List Patch Third Party Advisory
GitHub
https://github.com/torvalds/linux/commit/a4866aa812518ed1a37d8ea0c881dc946409de94

Issue Tracking Patch Third Party Advisory
Debian Security
http://www.debian.org/security/2017/dsa-3945

Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/97690

Third Party Advisory VDB Entry

Showing 5 of 12 references View all on NVD

Details

CVE ID CVE-2017-7889

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2017-04-17

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-7889?

CVE-2017-7889 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2017-7889 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-7889?

CVE-2017-7889 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2017-7889?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-7889 patch availability.
Is CVE-2017-7889 actively exploited?

No. CVE-2017-7889 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.