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NVD / CVE Program· CNA mitre

CVE-2020-12770: An issue was discovered in the Linux kernel through 5.6.11.

MediumCVSS 6.7 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 26/100)

  • 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: 0.58% (FIRST EPSS).
  • Someone with local access to the system can trigger it. Administrator privileges are required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: linux (Debian:10) 4.19.118-2+deb10u1; linux (Debian:12) 5.6.14-1; dtb-aarch64 (openSUSE:Leap 15.3) 5.3.18-59.24.1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to linux (Debian:10) 4.19.118-2+deb10u1; linux (Debian:12) 5.6.14-1; dtb-aarch64 (openSUSE:Leap 15.3) 5.3.18-59.24.1 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

An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a certain failure case, aka CID-83c6f2390040.

Published
May 9, 2020
Updated
Jun 16, 2026
EPSS
0.5% · 48th percentile
CWE
—

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

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

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Follow CVE-2020-12770

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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
fedoraprojectfedora
canonicalubuntu linux
debiandebian linux
netappactive iq unified manager
netappcloud backup
netappelement software
netapphci management node
netappsolidfire
netappsteelstore cloud integrated storage
netappbootstrap os
netapphci compute node

and 24 more

Affected versions

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

  • canonical ubuntu linux14.04
  • canonical ubuntu linux16.04
  • canonical ubuntu linux18.04
  • canonical ubuntu linux19.10
  • canonical ubuntu linux20.04
  • debian debian linux10.0
  • debian debian linux8.0
  • debian debian linux9.0
+12 more rows
  • fedoraproject fedora30
  • fedoraproject fedora31
  • fedoraproject fedora32
  • linux linux kernelup to 5.6.11 inclusive
  • netapp a700s firmwareall versions
  • netapp active iq unified managerall versions
  • netapp bootstrap osall versions
  • netapp cloud backupall versions
  • netapp element softwareall versions
  • netapp h300e firmwareall versions
  • netapp h300s firmwareall versions
  • netapp h410c firmwareall versions

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:10linuxbefore 4.19.118-2+deb10u14.19.118-2+deb10u1
Debian:12linuxbefore 5.6.14-15.6.14-1
openSUSE:Leap 15.3dtb-aarch64before 5.3.18-59.24.15.3.18-59.24.1
openSUSE:Leap 15.3kernel-64kbbefore 5.3.18-59.24.15.3.18-59.24.1
openSUSE:Leap 15.3kernel-azurebefore 5.3.18-38.22.25.3.18-38.22.2
openSUSE:Leap 15.3kernel-debugbefore 4.12.14-197.102.24.12.14-197.102.2
openSUSE:Leap 15.3kernel-debugbefore 5.3.18-59.24.15.3.18-59.24.1
openSUSE:Leap 15.3kernel-defaultbefore 4.12.14-197.102.24.12.14-197.102.2
openSUSE:Leap 15.3kernel-defaultbefore 5.3.18-59.24.15.3.18-59.24.1
openSUSE:Leap 15.3kernel-default-basebefore 5.3.18-59.24.1.18.12.15.3.18-59.24.1.18.12.1
openSUSE:Leap 15.3kernel-docsbefore 5.3.18-59.24.15.3.18-59.24.1
openSUSE:Leap 15.3kernel-kvmsmallbefore 5.3.18-59.24.15.3.18-59.24.1
openSUSE:Leap 15.3kernel-kvmsmallbefore 4.12.14-197.102.24.12.14-197.102.2
openSUSE:Leap 15.3kernel-obs-buildbefore 5.3.18-59.24.15.3.18-59.24.1
openSUSE:Leap 15.3kernel-obs-qabefore 5.3.18-59.24.15.3.18-59.24.1
openSUSE:Leap 15.3kernel-preemptbefore 5.3.18-59.24.15.3.18-59.24.1
openSUSE:Leap 15.3kernel-sourcebefore 5.3.18-59.24.15.3.18-59.24.1
openSUSE:Leap 15.3kernel-source-azurebefore 5.3.18-38.22.15.3.18-38.22.1
openSUSE:Leap 15.3kernel-symsbefore 5.3.18-59.24.15.3.18-59.24.1
openSUSE:Leap 15.3kernel-syms-azurebefore 5.3.18-38.22.15.3.18-38.22.1
openSUSE:Leap 15.3kernel-vanillabefore 4.12.14-197.102.24.12.14-197.102.2
openSUSE:Leap 15.3kernel-zfcpdumpbefore 4.12.14-197.102.24.12.14-197.102.2
openSUSE:Leap 15.3kernel-zfcpdumpbefore 5.3.18-59.24.15.3.18-59.24.1
Red Hat:rhel_aus:7.4::serverkernelbefore 0:3.10.0-693.81.1.el70:3.10.0-693.81.1.el7

+96

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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

Published before and after this one in the same product

  • ← EarlierCVE-2020-10690May 8, 2020 · There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource…
    25Monitor
  • ← EarlierCVE-2020-12768May 9, 2020 · An issue was discovered in the Linux kernel before 5.6.
    22Monitor
  • Later →CVE-2020-12771May 9, 2020 · An issue was discovered in the Linux kernel through 5.6.11.
    22Monitor

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:linux5.6.14-1 · Debian:12Package registry (OSV)
opensuse:dtb-aarch645.3.18-59.24.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-64kb5.3.18-59.24.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-azure5.3.18-38.22.2 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-debug5.3.18-59.24.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-default5.3.18-59.24.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-default-base5.3.18-59.24.1.18.12.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-docs5.3.18-59.24.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-kvmsmall5.3.18-59.24.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-obs-build5.3.18-59.24.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-obs-qa5.3.18-59.24.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-source-azure5.3.18-38.22.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-syms-azure5.3.18-38.22.1 · openSUSE:Leap 15.3Package registry (OSV)
red hat:bpftool0:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
red hat:bpftool-debuginfo0:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
red hat:kernel0:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
red hat:kernel-abi-whitelists0:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
red hat:kernel-debug0:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
red hat:kernel-debug-debuginfo0:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
red hat:kernel-debug-devel0:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
red hat:kernel-debuginfo0:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
red hat:kernel-debuginfo-common-x86_640:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
red hat:kernel-devel0:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
red hat:kernel-doc0:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
red hat:kernel-tools0:3.10.0-1062.40.1.el7 · Red Hat:rhel_eus:7.7::computenodePackage registry (OSV)
suse:kernel-64kb5.3.18-59.24.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP3Package registry (OSV)
suse:kernel-azure5.3.18-38.22.2 · SUSE:Linux Enterprise Module for Public Cloud 15 SP3Package registry (OSV)
suse:kernel-default5.3.18-59.24.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP3Package registry (OSV)
suse:kernel-default-base5.3.18-59.24.1.18.12.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP3Package registry (OSV)
suse:kernel-docs5.3.18-59.24.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP3Package registry (OSV)

+7

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.

Patch and commit links

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

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: EPSS history · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • Administrator privileges are required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

References

Show all references (15 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records