HOMEVULNERABILITIESCVE-2023-1390
HIGH

CVE-2023-1390

CWE-1050Published: March 16, 2023· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2023-1390 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

Linux1 product(s)
linux kernel
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6
PATCHhttps://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6
ADVISORYhttps://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5
ADVISORYhttps://security.netapp.com/advisory/ntap-20230420-0001/
ADVISORYhttps://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5
ADVISORYhttps://security.netapp.com/advisory/ntap-20230420-0001/

All References (8)

→
https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5Third Party Advisory
→
https://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6Patch · Vendor Advisory
→
https://infosec.exchange/%40_mattata/109427999461122360
→
https://security.netapp.com/advisory/ntap-20230420-0001/Third Party Advisory
→
https://gist.github.com/netspooky/bee2d07022f6350bb88eaa48e571d9b5Third Party Advisory
→
https://github.com/torvalds/linux/commit/b77413446408fdd256599daf00d5be72b5f3e7c6Patch · Vendor Advisory
→
https://infosec.exchange/%40_mattata/109427999461122360
→
https://security.netapp.com/advisory/ntap-20230420-0001/Third Party Advisory

Quick Facts

CVE IDCVE-2023-1390
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-1050
CISA KEVNo
Affected1 vendor(s)
PublishedMar 16, 2023

Related CVEs (CWE-1050)

CVE-2025-47947
7.5
CVE-2025-48866
7.5
CVE-2025-67419
7.5
CVE-2024-4068
7.5
CVE-2021-41039
7.5
CVE-2026-4634
7.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-1390 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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