CVE-2021-45769 — HIGH (7.5)

Vulnerability Description

A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of libiec61850 v1.5.0 can lead to a segmentation fault or application crash.

CVSS Score

7.5

HIGH

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

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Mz-Automation	Libiec61850	1.5.0

Related Weaknesses (CWE)

CWE-476

References

https://github.com/mz-automation/libiec61850/issues/368ExploitIssue TrackingPatch
https://github.com/mz-automation/libiec61850/issues/368ExploitIssue TrackingPatch

FAQ

What is CVE-2021-45769?

CVE-2021-45769 is a vulnerability with a CVSS score of 7.5 (HIGH). A NULL pointer dereference in AcseConnection_parseMessage at src/mms/iso_acse/acse.c of libiec61850 v1.5.0 can lead to a segmentation fault or application crash.

How severe is CVE-2021-45769?

CVE-2021-45769 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-45769?

Check the references section above for vendor advisories and patch information. Affected products include: Mz-Automation Libiec61850.