What is CVE-2017-10911?

CVE-2017-10911 is a medium-severity vulnerability in Linux Kernel, classified under Information Disclosure. CVSS score: 6.5/10. Published 2017-07-05.

How severe is CVE-2017-10911?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2017-10911 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Information disclosure in Linux Kernel

CVE-2017-10911

The make_response function in drivers/block/xen-blkback/blkback.c in the Linux kernel before 4.11.8 allows guest OS users to obtain sensitive information from host OS (or other guest OS) kernel memory by leveraging the copying of uninitialized padding fields in Xen block-interface response structures, aka XSA-216.

Vulnerability class: Information Disclosure

Published 2017-07-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.005 (38.0th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.000

Affected products

Linux Kernel

Weakness classification (CWE)

CWE-200 — Information Disclosure

Public proof-of-concept exploits

thdusdl1219/CVE-Study

References

xenbits.xen.org/xsa/advisory-216.html (Mitigation, Vendor Advisory)
www.debian.org/security/2017/dsa-3927 (vendor-advisory)
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Mailing List, Third Party Advisory)
www.debian.org/security/2017/dsa-3920 (vendor-advisory)
lists.debian.org/debian-lts-announce/2018/09/msg00007.html (mailing-list)
security.gentoo.org/glsa/201708-03 (vendor-advisory)
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.8 (Mailing List, Third Party Advisory)
www.securityfocus.com/bid/99162 (VDB Entry, Third Party Advisory, vdb-entry)
www.securitytracker.com/id/1038720 (VDB Entry, Third Party Advisory, vdb-entry)
github.com/torvalds/linux/commit/089bc0143f489bd3a4578bdff5f4ca68fb26f341 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2017-10911?: CVE-2017-10911 is a medium-severity vulnerability in Linux Kernel, classified under Information Disclosure. CVSS score: 6.5/10. Published 2017-07-05.
How severe is CVE-2017-10911?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2017-10911 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.