CVE-2017-5177: A Stack Buffer Overflow issue was discovered in VIPA Controls WinPLC7 5.0.45.5921 and prior

Q: How do I fix CVE-2017-5177?

winplc7 firmware: upgrade to newer than 5.0.45.5921. Exact commands for each OS are on this page.

Q: Is CVE-2017-5177 being exploited?

CVE-2017-5177 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-2017-5177 affect?

CVE-2017-5177 affects winplc7 firmware. Severity is high (CVSS 7.5). A Stack Buffer Overflow issue was discovered in VIPA Controls WinPLC7 5.0.45.5921 and prior. A stack-based buffer overflow vulnerability has been identified, where an attacker with a specially crafted packet could overflow the fixed length

Q: How urgent is CVE-2017-5177?

Priority 61/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2017-5177 is a high-severity flaw (CVSS 7.5) affecting winplc7 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Stack Buffer Overflow issue was discovered in VIPA Controls WinPLC7 5.0.45.5921 and prior. A stack-based buffer overflow vulnerability has been identified, where an attacker with a specially crafted packet could overflow the fixed length buffer. This could allow remote code execution.

Why this priority

High severity
EPSS top 3%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	17.7% (top 3%)
CISA exploited list	No
Weakness	CWE-121, CWE-119
Published	2017-05-19
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: vipa controls

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

Am I affected?

Timeline

2017-05-19 03:29 UTCPublished CVE record published
2026-06-17 01:20 UTCUpdated Record last modified

vipa controls winplc7 firmware UPGRADE

Affected: <= 5.0.45.5921

Fixed in: newer than 5.0.45.5921

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Viap Automation WinPLC7 5.0.45.5921 - Recv Buffer Overflow (Metasploit)

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-2017-5177?

winplc7 firmware: upgrade to newer than 5.0.45.5921. Exact commands for each OS are on this page.

Is CVE-2017-5177 being exploited?

CVE-2017-5177 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-2017-5177 affect?

CVE-2017-5177 affects winplc7 firmware. Severity is high (CVSS 7.5). A Stack Buffer Overflow issue was discovered in VIPA Controls WinPLC7 5.0.45.5921 and prior. A stack-based buffer overflow vulnerability has been identified, where an attacker with a specially crafted packet could overflow the fixed length

How urgent is CVE-2017-5177?

Priority 61/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

References

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