CVE-2018-10683: An issue was discovered in WildFly 10.1.2.Final

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CRITICAL 9.8REMOTEWATCHLISTDOWNGRADE

CVE-2018-10683 is a critical-severity flaw (CVSS 9.8) affecting wildfly. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in WildFly 10.1.2.Final. In the case of a default installation without a security realm reference, an attacker can successfully access the server without authentication. NOTE: the Security Realms documentation in the product's Admin Guide indicates that "without a security realm reference" implies "effectively unsecured." The vendor explicitly supports these unsecured configurations because they have valid use cases during

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 22%)
CISA exploited list	No
Weakness	CWE-287
Published	2018-05-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: redhat

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

Am I affected?

Timeline

2018-05-09 08:29 UTCPublished CVE record published
2026-06-17 01:34 UTCUpdated Record last modified

redhat wildfly DOWNGRADE

Affected: 10.1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.1.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 10.1.2 (Debian / Ubuntu)

apt-cache madison wildfly sudo apt install wildfly=<VERSION_BEFORE_10.1.2> sudo apt-mark hold wildfly

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

dnf --showduplicates list wildfly sudo dnf downgrade wildfly-<VERSION_BEFORE_10.1.2> sudo dnf versionlock add wildfly

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-2018-10683?

wildfly: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-10683 being exploited?

CVE-2018-10683 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-2018-10683 affect?

CVE-2018-10683 affects wildfly. Severity is critical (CVSS 9.8). An issue was discovered in WildFly 10.1.2.Final. In the case of a default installation without a security realm reference, an attacker can successfully access the server without authentication. NOTE: the Security Realms documentation in the

How urgent is CVE-2018-10683?

Priority 69/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

JBoss and WildFly vulnerabilities

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References

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