CVE-2019-16089: linux linux_kernel NULL Pointer Dereference
Vulnerability summary
CVE-2019-16089 is a medium (CVSS 4.7) NULL Pointer Dereference vulnerability in linux linux_kernel. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 32.8% of scored vulnerabilities.
Not severe (CVSS 4.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Related 4Timeline
- 06-09-2019PublishedVulnerability first disclosed.
- 08-10-2026Last modifiedVulnerability information updated.
Description
An issue was discovered in the Linux kernel through 5.2.13. nbd_genl_status in drivers/block/nbd.c does not check the nla_nest_start_noflag return value.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated4.1MediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated4.1MediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.39%
Chance of exploitation in the next 30 days
Percentile
33%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.39% 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, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu37 products
- linuxAll versions (No fix recorded) | < 4.15.0-109.110 | < 5.4.0-42.46
- linux-awsAll versions (No fix recorded) | < 4.15.0-1077.81 | < 5.4.0-1020.20
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3< 5.3.0-1032.34~18.04.2
- linux-aws-5.4< 5.4.0-1020.20~18.04.2
Debian1 product
- linuxAll versions (No fix recorded)
Linux1 product
- linux_kernel≤ 5.2.13
3 vendors · 39 products
