CVE-2020-10607: In Advantech WebAccess, Versions 8.4.2 and prior

Q: How do I fix CVE-2020-10607?

webaccess: upgrade to newer than 8.4.2. Exact commands for each OS are on this page.

Q: Is CVE-2020-10607 being exploited?

CVE-2020-10607 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-2020-10607 affect?

CVE-2020-10607 affects webaccess. Severity is high (CVSS 8.8). In Advantech WebAccess, Versions 8.4.2 and prior. A stack-based buffer overflow vulnerability caused by a lack of proper validation of the length of user-supplied data may allow remote code execution.

This month

HIGH 8.8UPGRADE

CVE-2020-10607 is a high-severity flaw (CVSS 8.8) affecting webaccess. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Advantech WebAccess, Versions 8.4.2 and prior. A stack-based buffer overflow vulnerability caused by a lack of proper validation of the length of user-supplied data may allow remote code execution.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-121, CWE-787
Published	2020-03-27
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

2020-03-27 14:15 UTCPublished CVE record published
2026-06-17 02:48 UTCUpdated Record last modified

advantech webaccess UPGRADE

Affected: <= 8.4.2

Fixed in: newer than 8.4.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 8.4.2 (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.

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-2020-10607?

webaccess: upgrade to newer than 8.4.2. Exact commands for each OS are on this page.

Is CVE-2020-10607 being exploited?

CVE-2020-10607 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-2020-10607 affect?

CVE-2020-10607 affects webaccess. Severity is high (CVSS 8.8). In Advantech WebAccess, Versions 8.4.2 and prior. A stack-based buffer overflow vulnerability caused by a lack of proper validation of the length of user-supplied data may allow remote code execution.

How urgent is CVE-2020-10607?

Priority 51/100. High severity

Software pages

Advantech vulnerabilities

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References

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