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CVE-2019-16995· NVD / CVE Program· CNA mitre

In the Linux kernel before 5.0.3, a memory leak exits in hsr_dev_finalize() in net/hsr/hsr_device.c if hsr_add_port fails to add a port, whi

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.5% (FIRST EPSS); higher than 89% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: linux (Debian:12) 4.19.37-1; kernel-debug (openSUSE:Leap 15.0) 4.12.14-lp150.12.82.1; kernel-default (openSUSE:Leap 15.0) 4.12.14-lp150.12.82.1.

Low priority for now. Upgrade to linux (Debian:12) 4.19.37-1; kernel-debug (openSUSE:Leap 15.0) 4.12.14-lp150.12.82.1; kernel-default (openSUSE:Leap 15.0) 4.12.14-lp150.12.82.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel before 5.0.3, a memory leak exits in hsr_dev_finalize() in net/hsr/hsr_device.c if hsr_add_port fails to add a port, which may cause denial of service, aka CID-6caabe7f197d.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Sep 30, 2019
Updated
Jun 16, 2026
EPSS
3.5% · 89th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.5%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2019-16995

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
opensuseleap
netappaff a700s firmware
netappaff a700s
netapph300s firmware
netapph300s
netapph500s firmware
netapph500s
netapph700s firmware
netapph700s
netapph300e firmware
netapph300e

and 15 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel3.17 and later · before 3.18.137
  • linux linux kernel4.4 and later · before 4.4.177
  • linux linux kernel4.9 and later · before 4.9.164
  • linux linux kernel4.14 and later · before 4.14.107
  • linux linux kernel4.19 and later · before 4.19.30
  • linux linux kernel4.20 and later · before 4.20.17
  • linux linux kernel5.0 and later · before 5.0.3
  • linux linux kernel5.1
  • netapp aff a700s firmwareall versions
  • netapp data availability servicesall versions
  • netapp h300e firmwareall versions
  • netapp h300s firmwareall versions
  • netapp h410c firmwareall versions
  • netapp h410s firmwareall versions
  • netapp h500e firmwareall versions
  • netapp h500s firmwareall versions
  • netapp h610s firmwareall versions
  • netapp h700e firmwareall versions
  • netapp h700s firmwareall versions
  • netapp hci management nodeall versions

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 4.19.37-14.19.37-1
openSUSE:Leap 15.0kernel-debugbefore 4.12.14-lp150.12.82.14.12.14-lp150.12.82.1
openSUSE:Leap 15.0kernel-defaultbefore 4.12.14-lp150.12.82.14.12.14-lp150.12.82.1
openSUSE:Leap 15.0kernel-docsbefore 4.12.14-lp150.12.82.14.12.14-lp150.12.82.1
openSUSE:Leap 15.0kernel-kvmsmallbefore 4.12.14-lp150.12.82.14.12.14-lp150.12.82.1
openSUSE:Leap 15.0kernel-obs-buildbefore 4.12.14-lp150.12.82.14.12.14-lp150.12.82.1
openSUSE:Leap 15.0kernel-obs-qabefore 4.12.14-lp150.12.82.14.12.14-lp150.12.82.1
openSUSE:Leap 15.0kernel-sourcebefore 4.12.14-lp150.12.82.14.12.14-lp150.12.82.1
openSUSE:Leap 15.0kernel-symsbefore 4.12.14-lp150.12.82.14.12.14-lp150.12.82.1
openSUSE:Leap 15.0kernel-vanillabefore 4.12.14-lp150.12.82.14.12.14-lp150.12.82.1
openSUSE:Leap 15.1kernel-debugbefore 4.12.14-lp151.28.25.14.12.14-lp151.28.25.1
openSUSE:Leap 15.1kernel-defaultbefore 4.12.14-lp151.28.25.14.12.14-lp151.28.25.1
openSUSE:Leap 15.1kernel-docsbefore 4.12.14-lp151.28.25.14.12.14-lp151.28.25.1
openSUSE:Leap 15.1kernel-kvmsmallbefore 4.12.14-lp151.28.25.14.12.14-lp151.28.25.1
openSUSE:Leap 15.1kernel-obs-buildbefore 4.12.14-lp151.28.25.14.12.14-lp151.28.25.1
openSUSE:Leap 15.1kernel-obs-qabefore 4.12.14-lp151.28.25.14.12.14-lp151.28.25.1
openSUSE:Leap 15.1kernel-sourcebefore 4.12.14-lp151.28.25.14.12.14-lp151.28.25.1
openSUSE:Leap 15.1kernel-symsbefore 4.12.14-lp151.28.25.14.12.14-lp151.28.25.1
openSUSE:Leap 15.1kernel-vanillabefore 4.12.14-lp151.28.25.14.12.14-lp151.28.25.1
SUSE:Linux Enterprise High Availability Extension 12 SP5kernel-defaultbefore 4.12.14-122.7.14.12.14-122.7.1
SUSE:Linux Enterprise Live Patching 12 SP5kgraft-patch-SLE12-SP5_Update_1before 1-8.7.11-8.7.1
SUSE:Linux Enterprise Live Patching 15kernel-livepatch-SLE15_Update_16before 1-1.3.11-1.3.1
SUSE:Linux Enterprise Live Patching 15 SP1kernel-livepatch-SLE15-SP1_Update_7before 1-3.5.11-3.5.1
SUSE:Linux Enterprise Module for Basesystem 15kernel-defaultbefore 4.12.14-150.41.14.12.14-150.41.1

+36

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2019-16921Sep 27, 2019 · In the Linux kernel before 4.17, hns_roce_alloc_ucontext in drivers/infiniband/hw/hns/hns_roce_main.c does not initialize the resp data stru
    31Monitor
  • ← EarlierCVE-2019-16994Sep 30, 2019 · In the Linux kernel before 5.0, a memory leak exists in sit_init_net() in net/ipv6/sit.c when register_netdev() fails to register sitn->fb_t
    18Monitor
  • Later →CVE-2019-17052Oct 1, 2019 · ax25_create in net/ax25/af_ax25.c in the AF_AX25 network module in the Linux kernel 3.16 through 5.3.2 does not enforce CAP_NET_RAW, which m
    13Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:linux4.19.37-1 · Debian:12Package registry (OSV)
opensuse:kernel-debug4.12.14-lp151.28.25.1 · openSUSE:Leap 15.1Package registry (OSV)
opensuse:kernel-default4.12.14-lp151.28.25.1 · openSUSE:Leap 15.1Package registry (OSV)
opensuse:kernel-docs4.12.14-lp151.28.25.1 · openSUSE:Leap 15.1Package registry (OSV)
opensuse:kernel-kvmsmall4.12.14-lp151.28.25.1 · openSUSE:Leap 15.1Package registry (OSV)
opensuse:kernel-obs-build4.12.14-lp151.28.25.1 · openSUSE:Leap 15.1Package registry (OSV)
opensuse:kernel-obs-qa4.12.14-lp151.28.25.1 · openSUSE:Leap 15.1Package registry (OSV)
opensuse:kernel-source4.12.14-lp151.28.25.1 · openSUSE:Leap 15.1Package registry (OSV)
opensuse:kernel-syms4.12.14-lp151.28.25.1 · openSUSE:Leap 15.1Package registry (OSV)
opensuse:kernel-vanilla4.12.14-lp151.28.25.1 · openSUSE:Leap 15.1Package registry (OSV)
suse:kernel-azure4.12.14-5.44.1 · SUSE:Linux Enterprise Module for Public Cloud 15Package registry (OSV)
suse:kernel-default4.12.14-150.41.1 · SUSE:Linux Enterprise Module for Basesystem 15Package registry (OSV)
suse:kernel-docs4.12.14-150.41.1 · SUSE:Linux Enterprise Module for Development Tools 15Package registry (OSV)
suse:kernel-livepatch-SLE15_Update_161-1.3.1 · SUSE:Linux Enterprise Live Patching 15Package registry (OSV)
suse:kernel-livepatch-SLE15-SP1_Update_71-3.5.1 · SUSE:Linux Enterprise Live Patching 15 SP1Package registry (OSV)
suse:kernel-obs-build4.12.14-150.41.1 · SUSE:Linux Enterprise Module for Development Tools 15Package registry (OSV)
suse:kernel-source4.12.14-150.41.1 · SUSE:Linux Enterprise Module for Basesystem 15Package registry (OSV)
suse:kernel-source-azure4.12.14-5.44.1 · SUSE:Linux Enterprise Module for Public Cloud 15Package registry (OSV)
suse:kernel-syms4.12.14-150.41.1 · SUSE:Linux Enterprise Module for Development Tools 15Package registry (OSV)
suse:kernel-syms-azure4.12.14-5.44.1 · SUSE:Linux Enterprise Module for Public Cloud 15Package registry (OSV)
suse:kernel-vanilla4.12.14-150.41.1 · SUSE:Linux Enterprise Module for Development Tools 15Package registry (OSV)
suse:kernel-zfcpdump4.12.14-150.41.1 · SUSE:Linux Enterprise Module for Basesystem 15Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

All records