CVE-2020-11668: linux linux_kernel NULL Pointer Dereference
Vulnerability summary
CVE-2020-11668 is a high (CVSS 7.1) NULL Pointer Dereference vulnerability in linux linux_kernel. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 41.6% of scored vulnerabilities.
Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 42 · Related 33Timeline
- 09-04-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In the Linux kernel before 5.6.1, drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink camera USB driver) mishandles invalid descriptors, aka CID-a246b4d54770.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
EPSS trend
Probability
0.48%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.48% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu36 products
- linuxAll versions (No fix recorded) | < 4.4.0-179.209 | < 4.15.0-99.100
- linux-aws< 4.4.0-1067.71 | < 4.4.0-1107.118 | < 4.15.0-1066.70
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3< 5.3.0-1019.21~18.04.1
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
Debian1 product
- linux< 5.5.17-1
Linux1 product
- linux_kernel< 5.6.1
Suse1 product
- kernel-livepatch-SLE15_Update_21&distro=SUSE Linux Enterprise Live Patching 15< 2-2.1
4 vendors · 39 products
References
24 links- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.1X Refsource MISCREPORTRelease NotesVendor Advisory
- github.com/torvalds/linux/commit/a246b4d547708f33ff4d4b9a7a5dbac741dc89d8X Refsource MISCREPORTPatchVendor Advisory
- security.netapp.com/advisory/ntap-20200430-0004/X Refsource CONFIRM
