CVE-2015-3946: Cross-site request forgery (CSRF) vulnerability in Advantech WebAccess before 8.1 allows remote attackers to h

Q: How do I fix CVE-2015-3946?

webaccess: upgrade to newer than 8.0. Exact commands for each OS are on this page.

Q: Is CVE-2015-3946 being exploited?

CVE-2015-3946 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-2015-3946 affect?

CVE-2015-3946 affects webaccess. Severity is high (CVSS 8.8). Cross-site request forgery (CSRF) vulnerability in Advantech WebAccess before 8.1 allows remote attackers to hijack the authentication of unspecified victims via unknown vectors.

This month

HIGH 8.8UPGRADE

CVE-2015-3946 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.

Cross-site request forgery (CSRF) vulnerability in Advantech WebAccess before 8.1 allows remote attackers to hijack the authentication of unspecified victims via unknown vectors.

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	None
User interaction	Required
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-352
Published	2016-01-15
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

2016-01-15 03:59 UTCPublished CVE record published
2026-06-17 00:26 UTCUpdated Record last modified

advantech webaccess UPGRADE

Affected: <= 8.0

Fixed in: newer than 8.0

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 8.0 (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-2015-3946?

webaccess: upgrade to newer than 8.0. Exact commands for each OS are on this page.

Is CVE-2015-3946 being exploited?

CVE-2015-3946 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-2015-3946 affect?

CVE-2015-3946 affects webaccess. Severity is high (CVSS 8.8). Cross-site request forgery (CSRF) vulnerability in Advantech WebAccess before 8.1 allows remote attackers to hijack the authentication of unspecified victims via unknown vectors.

How urgent is CVE-2015-3946?

Priority 46/100. High severity

Software pages

Advantech vulnerabilities

Related CVEs

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CVE-2023-2866 HIGH 7.3 DOWNGRADE If an attacker can trick an authenticated user into loading a maliciously crafted .zip file onto Advantech We
CVE-2021-38408 CRITICAL 9.8 UPGRADE A stack-based buffer overflow vulnerability in Advantech WebAccess Versions 9.02 and prior caused by a lack of
CVE-2021-38389 CRITICAL 9.8 UPGRADE Advantech WebAccess versions 9.02 and prior are vulnerable to a stack-based buffer overflow, which may allow a
CVE-2021-34540 MEDIUM 6.1 DOWNGRADE Advantech WebAccess 8.4.2 and 8.4.4 allows XSS via the username column of the bwRoot.asp page of WADashboard.

References

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