CVE-2018-8839: Delta PMSoft versions 2.10 and prior have multiple stack-based buffer overflow vulnerabilities where a .ppm fi

Q: How do I fix CVE-2018-8839?

pmsoft: upgrade to newer than 2.10. Exact commands for each OS are on this page.

Q: Is CVE-2018-8839 being exploited?

CVE-2018-8839 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-8839 affect?

CVE-2018-8839 affects pmsoft. Severity is high (CVSS 7.8). Delta PMSoft versions 2.10 and prior have multiple stack-based buffer overflow vulnerabilities where a .ppm file can introduce a value larger than is readable by PMSoft's fixed-length stack buffer. This can cause the buffer to be overwritte

Routine

HIGH 7.8UPGRADE

CVE-2018-8839 is a high-severity flaw (CVSS 7.8) affecting pmsoft. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Delta PMSoft versions 2.10 and prior have multiple stack-based buffer overflow vulnerabilities where a .ppm file can introduce a value larger than is readable by PMSoft's fixed-length stack buffer. This can cause the buffer to be overwritten, which may allow arbitrary code execution or cause the application to crash. CVSS v3 base score: 7.1; CVSS vector string: AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H. Delta Electronics recommends affected users updat

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-121, CWE-787
Published	2018-04-30
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: deltaww

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

Am I affected?

Timeline

2018-04-30 15:29 UTCPublished CVE record published
2026-06-17 02:05 UTCUpdated Record last modified

deltaww pmsoft UPGRADE

Affected: <= 2.10

Fixed in: newer than 2.10

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2018-8839?

pmsoft: upgrade to newer than 2.10. Exact commands for each OS are on this page.

Is CVE-2018-8839 being exploited?

CVE-2018-8839 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-2018-8839 affect?

CVE-2018-8839 affects pmsoft. Severity is high (CVSS 7.8). Delta PMSoft versions 2.10 and prior have multiple stack-based buffer overflow vulnerabilities where a .ppm file can introduce a value larger than is readable by PMSoft's fixed-length stack buffer. This can cause the buffer to be overwritte

How urgent is CVE-2018-8839?

Priority 37/100. High severity

Related CVEs

CVE-2016-5805 HIGH 7.8 MITIGATE MITIGATE An issue was discovered in Delta Electronics WPLSoft, Versions prior to V2.42.11, ISPSoft, Versions prior to 3
CVE-2016-5802 HIGH 7.8 MITIGATE MITIGATE An issue was discovered in Delta Electronics WPLSoft, Versions prior to V2.42.11, ISPSoft, Versions prior to 3

References

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