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CVE-2023-1390

26
FAUCET Score

CVE-2023-1390 is a remote denial-of-service vulnerability affecting the Linux kernel's TIPC module. An attacker can trigger a 100% CPU utilization spike by sending two small UDP packets to a system with a UDP bearer, leading to a system crash. This vulnerability has a CVSS score of 7.5 (High), indicating it can be exploited remotely with low complexity and no user interaction, resulting in high availability impact. Currently, there is no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.3, < 4.9.253CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.217CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.170CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.92CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.10CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.10%
Probability of exploitation in next 30 days
EPSS Percentile
91.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0510 is in the 85th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (13)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 5.10.174.1-1
microsoftpatch availablevia msrc
Product: cm1 kernel 5.10.174.1-1 on CBL Mariner 1.0Fixed in: 5.10.174.1-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 5.10.174.1-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: kpatch-patch
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: kernel-0:4.18.0-193.109.1.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: kernel-rt-0:4.18.0-193.109.1.rt13.160.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: kernel-0:4.18.0-193.109.1.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: kernel-0:4.18.0-193.109.1.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: kpatch-patch
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-305.rt7.72.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-305.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: kernel-0:4.18.0-147.83.1.el8_1
View patch

Vendor Advisories (3)

microsoft2023-Apr/CVE-2023-1390

CVE-2023-1390

Apr 11, 2023
microsoft2023-Mar/CVE-2023-1390Important

A remote denial of service vulnerability was found in the Linux kernel’s TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs which are not in the queue. Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100% causing a denial of service condition.

Mar 14, 2023
redhatCVE-2023-1390Important

kernel: remote DoS in TIPC kernel module

Jan 9, 2021

References

gist.github.com / netspooky/bee2d07022f6350bb88eaa48e571d9b5
Third Party Advisory
github.com / torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6
PatchVendor Advisory
infosec.exchange / %40_mattata/109427999461122360
security.netapp.com / advisory/ntap-20230420-0001
Third Party Advisory