CVE-2011-0488: Stack-based buffer overflow in NTWebServer.exe in the test web service in InduSoft NTWebServer, as distributed

This week

HIGH 10.0DOWNGRADEDOWNGRADE

CVE-2011-0488 is a high-severity flaw (CVSS 10.0) affecting advantech studio, web studio. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stack-based buffer overflow in NTWebServer.exe in the test web service in InduSoft NTWebServer, as distributed in Advantech Studio 6.1 and InduSoft Web Studio 7.0, allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a long request to TCP port 80.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	8.6% (top 5%)
CISA exploited list	No
Weakness	CWE-119
Published	2011-01-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: advantech · indusoft

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

Am I affected?

Timeline

2011-01-18 18:03 UTCPublished CVE record published
2026-06-16 23:27 UTCUpdated Record last modified

advantech advantech studio DOWNGRADE

Affected: 6.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.1

1. Check installed version

apt-cache policy advantech-studio || rpm -q advantech-studio || advantech-studio --version

2. No fixed release: DOWNGRADE to a release before 6.1 (Debian / Ubuntu)

apt-cache madison advantech-studio sudo apt install advantech-studio=<VERSION_BEFORE_6.1> sudo apt-mark hold advantech-studio

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

dnf --showduplicates list advantech-studio sudo dnf downgrade advantech-studio-<VERSION_BEFORE_6.1> sudo dnf versionlock add advantech-studio

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.

indusoft web studio DOWNGRADE

Affected: 7.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0

1. Check installed version

apt-cache policy web-studio || rpm -q web-studio || web-studio --version

2. No fixed release: DOWNGRADE to a release before 7.0 (Debian / Ubuntu)

apt-cache madison web-studio sudo apt install web-studio=<VERSION_BEFORE_7.0> sudo apt-mark hold web-studio

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

dnf --showduplicates list web-studio sudo dnf downgrade web-studio-<VERSION_BEFORE_7.0> sudo dnf versionlock add web-studio

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-2011-0488?

advantech studio: downgrade or apply the listed mitigation; web studio: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2011-0488 being exploited?

CVE-2011-0488 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-2011-0488 affect?

CVE-2011-0488 affects advantech studio, web studio. Severity is high (CVSS 10.0). Stack-based buffer overflow in NTWebServer.exe in the test web service in InduSoft NTWebServer, as distributed in Advantech Studio 6.1 and InduSoft Web Studio 7.0, allows remote attackers to cause a denial of service (daemon crash) or possi

How urgent is CVE-2011-0488?

Priority 59/100. Critical severity; EPSS top 5%: very likely to be exploited

Software pages

Advantech vulnerabilities

Related CVEs

CVE-2013-1627 HIGH 7.8 DOWNGRADE DOWNGRADE Absolute path traversal vulnerability in NTWebServer.exe in Indusoft Studio 7.0 and earlier and Advantech Stud
CVE-2011-0340 HIGH 9.3 DOWNGRADE DOWNGRADE Multiple buffer overflows in the ISSymbol ActiveX control in ISSymbol.ocx 61.6.0.0 and 301.1009.2904.0 in the

References

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