CVE-2017-14016: A Stack-based Buffer Overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817

Q: How do I fix CVE-2017-14016?

webaccess: upgrade to 8.2_20170817. Exact commands for each OS are on this page.

Q: Is CVE-2017-14016 being exploited?

CVE-2017-14016 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-2017-14016 affect?

CVE-2017-14016 affects webaccess. Severity is medium (CVSS 6.3). A Stack-based Buffer Overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. The application lacks proper validation of the length of user-supplied data prior to copying it to a stack-based buffer, which could

Q: How urgent is CVE-2017-14016?

Priority 51/100. EPSS top 3%: very likely to be exploited; Public exploit reference

This week

MEDIUM 6.3UPGRADE

CVE-2017-14016 is a medium-severity flaw (CVSS 6.3) affecting webaccess. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Stack-based Buffer Overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. The application lacks proper validation of the length of user-supplied data prior to copying it to a stack-based buffer, which could allow an attacker to execute arbitrary code under the context of the process.

Why this priority

EPSS top 3%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	16.0% (top 3%)
CISA exploited list	No
Weakness	CWE-121, CWE-119
Published	2017-11-06
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2017-11-06 22:29 UTCPublished CVE record published
2026-06-17 01:05 UTCUpdated Record last modified

advantech webaccess UPGRADE

Affected: < 8.2_20170817

Fixed in: 8.2_20170817

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 8.2_20170817 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade webaccess

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade webaccess

Note

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

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: Advantech WebAccess 8.2-2017.03.31 - Webvrpcs Service Opcode 80061 Stack Buffer Overflow (Metasploit)
Metasploit: Advantech WebAccess Webvrpcs Service Opcode 80061 Stack Buffer Overflow

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-2017-14016?

webaccess: upgrade to 8.2_20170817. Exact commands for each OS are on this page.

Is CVE-2017-14016 being exploited?

CVE-2017-14016 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-2017-14016 affect?

CVE-2017-14016 affects webaccess. Severity is medium (CVSS 6.3). A Stack-based Buffer Overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. The application lacks proper validation of the length of user-supplied data prior to copying it to a stack-based buffer, which could

How urgent is CVE-2017-14016?

Priority 51/100. EPSS top 3%: very likely to be exploited; Public exploit reference

Software pages

Advantech vulnerabilities

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References

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