CVE-2012-4359: Sielco Sistemi Winlog Pro SCADA before 2.07.18 and Winlog Lite SCADA before 2.07.18 do not validate the return

Q: How do I fix CVE-2012-4359?

winlog pro: upgrade to newer than 2.07.17; winlog lite: upgrade to newer than 2.07.17. Exact commands for each OS are on this page.

Q: Is CVE-2012-4359 being exploited?

CVE-2012-4359 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-2012-4359 affect?

CVE-2012-4359 affects winlog pro, winlog lite. Severity is high (CVSS 9.3). Sielco Sistemi Winlog Pro SCADA before 2.07.18 and Winlog Lite SCADA before 2.07.18 do not validate the return value of the realloc function, which allows remote attackers to cause a denial of service (invalid 0x00 write operation and daemo

Q: How urgent is CVE-2012-4359?

Priority 59/100. Critical severity; Public exploit reference

This month

HIGH 9.3UPGRADEUPGRADE

CVE-2012-4359 is a high-severity flaw (CVSS 9.3) affecting winlog pro, winlog lite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Sielco Sistemi Winlog Pro SCADA before 2.07.18 and Winlog Lite SCADA before 2.07.18 do not validate the return value of the realloc function, which allows remote attackers to cause a denial of service (invalid 0x00 write operation and daemon crash) or possibly have unspecified other impact via a port-46824 TCP packet with a crafted negative integer after the opcode. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-4358.

Why this priority

Critical severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	9.3 (High)
EPSS exploit chance	2.5% (top 15%)
CISA exploited list	No
Weakness	CWE-20
Published	2012-08-19
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: sielcosistemi

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2012-08-19 20:55 UTCPublished CVE record published
2026-06-16 23:44 UTCUpdated Record last modified

sielcosistemi winlog pro UPGRADE

Affected: <= 2.07.17 · 2.06.00 · 2.06.03 · 2.06.04 · 2.06.06 · 2.06.09 · 2.06.10 · 2.06.12

Fixed in: newer than 2.07.17

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy winlog-pro || rpm -q winlog-pro || winlog-pro --version

2. UPGRADE to newer than 2.07.17 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade winlog-pro

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade winlog-pro

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

sielcosistemi winlog lite UPGRADE

Affected: <= 2.07.17 · 2.06.00 · 2.06.03 · 2.06.04 · 2.06.06 · 2.06.09 · 2.06.10 · 2.06.12

Fixed in: newer than 2.07.17

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy winlog-lite || rpm -q winlog-lite || winlog-lite --version

2. UPGRADE to newer than 2.07.17 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade winlog-lite

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade winlog-lite

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2012-4359?

winlog pro: upgrade to newer than 2.07.17; winlog lite: upgrade to newer than 2.07.17. Exact commands for each OS are on this page.

Is CVE-2012-4359 being exploited?

CVE-2012-4359 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-2012-4359 affect?

CVE-2012-4359 affects winlog pro, winlog lite. Severity is high (CVSS 9.3). Sielco Sistemi Winlog Pro SCADA before 2.07.18 and Winlog Lite SCADA before 2.07.18 do not validate the return value of the realloc function, which allows remote attackers to cause a denial of service (invalid 0x00 write operation and daemo

How urgent is CVE-2012-4359?

Priority 59/100. Critical severity; Public exploit reference

Related CVEs

CVE-2017-5161 HIGH 7.2 UPGRADE UPGRADE An issue was discovered in Sielco Sistemi Winlog Lite SCADA Software, versions prior to Version 3.02.01, and W
CVE-2012-4358 HIGH 9.3 UPGRADE UPGRADE Sielco Sistemi Winlog Pro SCADA before 2.07.17 and Winlog Lite SCADA before 2.07.17 do not validate the return
CVE-2012-4357 HIGH 9.3 UPGRADE UPGRADE Array index error in Sielco Sistemi Winlog Pro SCADA before 2.07.17 and Winlog Lite SCADA before 2.07.17 might
CVE-2012-4356 MEDIUM 4.3 UPGRADE UPGRADE Multiple directory traversal vulnerabilities in Sielco Sistemi Winlog Pro SCADA before 2.07.17 and Winlog Lite
CVE-2012-4355 HIGH 9.3 UPGRADE UPGRADE TCPIPS_Story.dll in Sielco Sistemi Winlog Pro SCADA before 2.07.18 and Winlog Lite SCADA before 2.07.18 allows

References

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