CVE-2023-0847

Name: CVE-2023-0847
Creator: NVD / NIST
Published: 2023-03-01T00:15:10.897+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.82%

Last modified Jun 17, 2026

CVE-2023-0847 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. The Sub-IoT implementation of the DASH 7 Alliance protocol has a vulnerability that can lead to an out-of-bounds write prior to implementation version 0.5.0. If the protocol has been compiled using default settings, this will only grant the attacker access to allocated but unused memory. EPSS estimates a 0.82% chance of exploitation in the next 30 days.

Description

The Sub-IoT implementation of the DASH 7 Alliance protocol has a vulnerability that can lead to an out-of-bounds write prior to implementation version 0.5.0. If the protocol has been compiled using default settings, this will only grant the attacker access to allocated but unused memory. However, if it was configured using non-default settings, there is the possibility that exploiting this vulnerability could lead to system crashes and remote code execution.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

0.82%

52.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Dash7-Alliance	Dash7 Alliance Protcol	<= 0.5.0

References

https://github.com/Sub-IoT/Sub-IoT-Stack/security/advisories/GHSA-ggxh-88wc-c4fgVendor Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-23-047-13Third Party Advisory, US Government Resource
https://github.com/Sub-IoT/Sub-IoT-Stack/security/advisories/GHSA-ggxh-88wc-c4fgVendor Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-23-047-13Third Party Advisory, US Government Resource

Timeline

Published: Mar 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-0847?

How severe is CVE-2023-0847?

CVE-2023-0847 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.82% probability of exploitation in the next 30 days.

How do I fix CVE-2023-0847?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-0847?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST