Medium 4.4Published Apr 2, 2020

CVE-2020-11494An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel 3.16 through 5.6.2.

Updated under an hour ago (Oct 27, 2026, 3:10 AM ET)

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It affects linux_kernel and 3 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel 3.16 through 5.6.2. It allows attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL, aka CID-b9258a2cece4.

CVSS: 4.4 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: mitre
NVD analysis: Modified
Record last updated: Oct 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

linux linux_kernel linux:linux_kernel	from 3.16 through 5.6.2	NVD
opensuse leap opensuse:leap	15.1	NVD
debian debian_linux debian:debian_linux	8.0; 9.0	NVD
canonical ubuntu_linux canonical:ubuntu_linux	14.04; 16.04; 18.04; 19.10	NVD

References

References

https://github.com/torvalds/linux/commit/b9258a2cece4ec1f020715fe3554bc2e360f6264	x-refsource-misc
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html	vendor-advisory, x-refsource-suse
https://security.netapp.com/advisory/ntap-20200430-0004/	x-refsource-confirm
https://usn.ubuntu.com/4364-1/	vendor-advisory, x-refsource-ubuntu
https://usn.ubuntu.com/4368-1/	vendor-advisory, x-refsource-ubuntu
https://usn.ubuntu.com/4363-1/	vendor-advisory, x-refsource-ubuntu
https://usn.ubuntu.com/4369-1/	vendor-advisory, x-refsource-ubuntu
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html	mailing-list, x-refsource-mlist
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html	mailing-list, x-refsource-mlist
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html	mailing-list, x-refsource-mlist
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.