CVE-2023-32539: Horner Automation Cscape lacks proper validation of user-supplied data when parsing project files (e.g., HMI)

Routine

HIGH 7.8DOWNGRADEDOWNGRADE

CVE-2023-32539 is a high-severity flaw (CVSS 7.8) affecting cscape, cscape envisionrv. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Horner Automation Cscape lacks proper validation of user-supplied data when parsing project files (e.g., HMI). This could lead to an out-of-bounds write at CScape_EnvisionRV+0x2e3c04. An attacker could leverage this vulnerability to potentially execute arbitrary code in the context of the current process.

Why this priority

High severity

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-787
Published	2023-06-06
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2023-06-06 16:15 UTCPublished CVE record published
2026-06-17 05:59 UTCUpdated Record last modified

hornerautomation cscape DOWNGRADE

Affected: 9.90 sp8

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.90

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 9.90 (Debian / Ubuntu)

apt-cache madison cscape sudo apt install cscape=<VERSION_BEFORE_9.90> sudo apt-mark hold cscape

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

dnf --showduplicates list cscape sudo dnf downgrade cscape-<VERSION_BEFORE_9.90> sudo dnf versionlock add cscape

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.

hornerautomation cscape envisionrv DOWNGRADE

Affected: 4.70

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.70

1. Check installed version

apt-cache policy cscape-envisionrv || rpm -q cscape-envisionrv || cscape-envisionrv --version

2. No fixed release: DOWNGRADE to a release before 4.70 (Debian / Ubuntu)

apt-cache madison cscape-envisionrv sudo apt install cscape-envisionrv=<VERSION_BEFORE_4.70> sudo apt-mark hold cscape-envisionrv

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

dnf --showduplicates list cscape-envisionrv sudo dnf downgrade cscape-envisionrv-<VERSION_BEFORE_4.70> sudo dnf versionlock add cscape-envisionrv

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-2023-32539?

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

Is CVE-2023-32539 being exploited?

CVE-2023-32539 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-2023-32539 affect?

CVE-2023-32539 affects cscape, cscape envisionrv. Severity is high (CVSS 7.8). Horner Automation Cscape lacks proper validation of user-supplied data when parsing project files (e.g., HMI). This could lead to an out-of-bounds write at CScape_EnvisionRV+0x2e3c04. An attacker could leverage this vulnerability to potenti

How urgent is CVE-2023-32539?

Priority 31/100. High severity

Related CVEs

CVE-2023-7206 HIGH 7.8 UPGRADE In Horner Automation Cscape versions 9.90 SP10 and prior, local attackers are able to exploit this vulnerabil
CVE-2023-32545 HIGH 7.8 DOWNGRADE DOWNGRADE The affected application lacks proper validation of user-supplied data when parsing project files
CVE-2023-32289 HIGH 7.8 DOWNGRADE DOWNGRADE The affected application lacks proper validation of user-supplied data when parsing project files (
CVE-2023-32281 HIGH 7.8 DOWNGRADE DOWNGRADE The affected application lacks proper validation of user-supplied data when parsing project files (e.
CVE-2023-32203 HIGH 7.8 DOWNGRADE DOWNGRADE Horner Automation Cscape lacks proper validation of user-supplied data when parsing project files (e.g., HMI)

References

← Back to latest CVEs