CVE-2026-35252: Vulnerability in the Oracle Security Service product of Oracle Fusion Middleware (component: C Oracle SSL API)

Routine

MEDIUM 6.4DOWNGRADE

CVE-2026-35252 is a medium-severity flaw (CVSS 6.4) affecting fusion middleware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Oracle Security Service product of Oracle Fusion Middleware (component: C Oracle SSL API). Supported versions that are affected are 12.2.1.4.0 and 12.1.3.0.0. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTPS to compromise Oracle Security Service. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can res

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.4 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-04-21
Last modified	2026-10-26

Publisher (CNA): Oracle · Vendor: oracle

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-21 21:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

oracle fusion middleware DOWNGRADE

Affected: 12.1.3.0.0 · 12.2.1.4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.1.3.0.0

1. Check installed version

apt-cache policy fusion-middleware || rpm -q fusion-middleware || fusion-middleware --version

2. No fixed release: DOWNGRADE to a release before 12.1.3.0.0 (Debian / Ubuntu)

apt-cache madison fusion-middleware sudo apt install fusion-middleware=<VERSION_BEFORE_12.1.3.0.0> sudo apt-mark hold fusion-middleware

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

dnf --showduplicates list fusion-middleware sudo dnf downgrade fusion-middleware-<VERSION_BEFORE_12.1.3.0.0> sudo dnf versionlock add fusion-middleware

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-2026-35252?

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

Is CVE-2026-35252 being exploited?

CVE-2026-35252 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-2026-35252 affect?

CVE-2026-35252 affects fusion middleware. Severity is medium (CVSS 6.4). Vulnerability in the Oracle Security Service product of Oracle Fusion Middleware (component: C Oracle SSL API). Supported versions that are affected are 12.2.1.4.0 and 12.1.3.0.0. Difficult to exploit vulnerability allows low privileged a

How urgent is CVE-2026-35252?

Priority 24/100. No elevated risk signals yet.

Related CVEs

CVE-2026-35232 MEDIUM 5.4 DOWNGRADE Vulnerability in Oracle Fusion Middleware (component: Dynamic Monitoring Service)

References

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