CVE-2023-5131: A heap buffer-overflow exists in Delta Electronics ISPSoft

This month

HIGH 8.2DOWNGRADE

CVE-2023-5131 is a high-severity flaw (CVSS 8.2) affecting ispsoft. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A heap buffer-overflow exists in Delta Electronics ISPSoft. An anonymous attacker can exploit this vulnerability by enticing a user to open a specially crafted DVP file to achieve code execution.

Why this priority

High severity

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

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-119, CWE-787
Published	2024-01-18
Last modified	2026-06-17

Publisher (CNA): Exodus Intelligence · Vendor: deltaww

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

Am I affected?

Timeline

2024-01-18 22:15 UTCPublished CVE record published
2026-06-17 06:47 UTCUpdated Record last modified

deltaww ispsoft DOWNGRADE

Affected: 3.02.11

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.02.11

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.02.11 (Debian / Ubuntu)

apt-cache madison ispsoft sudo apt install ispsoft=<VERSION_BEFORE_3.02.11> sudo apt-mark hold ispsoft

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

dnf --showduplicates list ispsoft sudo dnf downgrade ispsoft-<VERSION_BEFORE_3.02.11> sudo dnf versionlock add ispsoft

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-2023-5131?

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

Is CVE-2023-5131 being exploited?

CVE-2023-5131 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-2023-5131 affect?

CVE-2023-5131 affects ispsoft. Severity is high (CVSS 8.2). A heap buffer-overflow exists in Delta Electronics ISPSoft. An anonymous attacker can exploit this vulnerability by enticing a user to open a specially crafted DVP file to achieve code execution.

How urgent is CVE-2023-5131?

Priority 43/100. High severity

Related CVEs

CVE-2025-4125 HIGH 7.8 UPGRADE Delta Electronics ISPSoft version 3.20 is vulnerable to an Out-Of-Bounds Write vulnerability that could allow
CVE-2025-4124 HIGH 7.8 UPGRADE Delta Electronics ISPSoft version 3.20 is vulnerable to an Out-Of-Bounds Write vulnerability that could allow
CVE-2025-22884 HIGH 7.8 UPGRADE Delta Electronics ISPSoft version 3.20 is vulnerable to a Stack-Based buffer overflow vulnerability that could
CVE-2025-22883 HIGH 7.8 UPGRADE Delta Electronics ISPSoft version 3.20 is vulnerable to an Out-Of-Bounds Write vulnerability that could allow
CVE-2025-22882 HIGH 7.8 UPGRADE Delta Electronics ISPSoft version 3.20 is vulnerable to a Stack-Based buffer overflow vulnerability that could

References

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