CVE-2017-10266: Vulnerability in the Oracle Tuxedo component of Oracle Fusion Middleware (subcomponent: Core)

This month

MEDIUM 5.3REMOTEDOWNGRADE

CVE-2017-10266 is a medium-severity flaw (CVSS 5.3) affecting tuxedo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Oracle Tuxedo component of Oracle Fusion Middleware (subcomponent: Core). Supported versions that are affected are 11.1.1, 12.1.1, 12.1.3 and 12.2.2. Easily exploitable vulnerability allows unauthenticated attacker with network access via Jolt to compromise Oracle Tuxedo. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Tuxedo accessible data. CVSS 3.0 Base Score 5.3 (Confi

Why this priority

Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-200
Published	2017-11-14
Last modified	2026-06-17

Publisher (CNA): Oracle · Vendor: oracle

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

Am I affected?

Timeline

2017-11-14 23:29 UTCPublished CVE record published
2026-06-17 00:59 UTCUpdated Record last modified

oracle tuxedo DOWNGRADE

Affected: 11.1.1 · 12.1.1 · 12.1.3 · 12.2.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.1.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 11.1.1 (Debian / Ubuntu)

apt-cache madison tuxedo sudo apt install tuxedo=<VERSION_BEFORE_11.1.1> sudo apt-mark hold tuxedo

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

dnf --showduplicates list tuxedo sudo dnf downgrade tuxedo-<VERSION_BEFORE_11.1.1> sudo dnf versionlock add tuxedo

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-2017-10266?

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

Is CVE-2017-10266 being exploited?

CVE-2017-10266 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-2017-10266 affect?

CVE-2017-10266 affects tuxedo. Severity is medium (CVSS 5.3). Vulnerability in the Oracle Tuxedo component of Oracle Fusion Middleware (subcomponent: Core). Supported versions that are affected are 11.1.1, 12.1.1, 12.1.3 and 12.2.2. Easily exploitable vulnerability allows unauthenticated attacker with

How urgent is CVE-2017-10266?

Priority 40/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2018-3007 HIGH 8.6 DOWNGRADE Vulnerability in the Oracle Tuxedo component of Oracle Fusion Middleware (subcomponent: Core)
CVE-2017-10278 HIGH 7.0 DOWNGRADE Vulnerability in the Oracle Tuxedo component of Oracle Fusion Middleware (subcomponent: Security)
CVE-2017-10272 CRITICAL 9.9 DOWNGRADE Vulnerability in the Oracle Tuxedo component of Oracle Fusion Middleware (subcomponent: Core)
CVE-2017-10269 CRITICAL 10.0 DOWNGRADE Vulnerability in the Oracle Tuxedo component of Oracle Fusion Middleware (subcomponent: Core)
CVE-2017-10267 HIGH 7.5 DOWNGRADE Vulnerability in the Oracle Tuxedo component of Oracle Fusion Middleware (subcomponent: Core)

References

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