CVE-2024-28286: In mz-automation libiec61850 v1.4.0, a NULL Pointer Dereference was detected in the mmsServer_handleFileCloseR

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2024-28286 is a high-severity flaw (CVSS 7.5) affecting libiec61850. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In mz-automation libiec61850 v1.4.0, a NULL Pointer Dereference was detected in the mmsServer_handleFileCloseRequest.c function of src/mms/iso_mms/server/mms_file_service.c. The vulnerability manifests as SEGV and causes the application to crash

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 45%)
CISA exploited list	No
Weakness	CWE-476
Published	2024-03-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: mz-automation

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-03-21 02:52 UTCPublished CVE record published
2026-06-17 07:21 UTCUpdated Record last modified

mz-automation libiec61850 DOWNGRADE

Affected: 1.4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.0

1. Check installed version

apt-cache policy libiec61850 || rpm -q libiec61850 || libiec61850 --version

2. No fixed release: DOWNGRADE to a release before 1.4.0 (Debian / Ubuntu)

apt-cache madison libiec61850 sudo apt install libiec61850=<VERSION_BEFORE_1.4.0> sudo apt-mark hold libiec61850

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list libiec61850 sudo dnf downgrade libiec61850-<VERSION_BEFORE_1.4.0> sudo dnf versionlock add libiec61850

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-28286?

libiec61850: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-28286 being exploited?

CVE-2024-28286 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-28286 affect?

CVE-2024-28286 affects libiec61850. Severity is high (CVSS 7.5). In mz-automation libiec61850 v1.4.0, a NULL Pointer Dereference was detected in the mmsServer_handleFileCloseRequest.c function of src/mms/iso_mms/server/mms_file_service.c. The vulnerability manifests as SEGV and causes the application to

How urgent is CVE-2024-28286?

Priority 50/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-36702 HIGH 7.4 DOWNGRADE libiec61850 v1.5 was discovered to contain a heap overflow via the BerEncoder_encodeLength function at /asn1/b
CVE-2024-45971 CRITICAL 9.8 UPGRADE Multiple Buffer overflows in the MMS Client in MZ Automation LibIEC61850 before commit 1f52be9ddeae00e69cd43e4
CVE-2024-45970 CRITICAL 9.8 UPGRADE Multiple Buffer overflows in the MMS Client in MZ Automation LibIEC61850 before commit ac925fae8e281ac6defcd63
CVE-2024-26529 HIGH 7.5 UPGRADE An issue in mz-automation libiec61850 v.1.5.3 and before, allows a remote attacker to cause a denial of servic
CVE-2024-25366 MEDIUM 6.2 DOWNGRADE Buffer Overflow vulnerability in mz-automation.de libiec61859 v.1.4.0 allows a remote attacker to cause a deni

References

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