CVE-2017-10271
HighExploitedPublic exploitEasily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle WebLogic Server.
Published Oct 19, 2017 · Updated Aug 13, 2026
Key Facts
Patch immediately- CVE-2017-10271 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting WebLogic Server (Oracle).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 17, 2017 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 100% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (30-day exploit likelihood)
100%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2017-10271 brief as a PDF
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Description
Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS Security). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.1.0 and 12.2.1.2.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Feb 10, 2022 | Aug 10, 2022 | Known |
| Industry KEV feed | Jan 17, 2017 | Aug 10, 2022 | Known |
| CIRCL KEV | Feb 10, 2022 | Aug 10, 2022 | Known |
| ENISA EUVD | Feb 10, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| WebLogic ServerOracle | 10.3.6.0.0, 12.1.3.0.0, 12.2.1.1.0, 12.2.1.2.0, >= 10.3.6.0.0 | n/a |
Timeline
Added to Industry KEV feed
Jan 17, 2017
Publicly disclosed
Oct 19, 2017
Added to CISA KEV
Feb 10, 2022
Added to CIRCL KEV
Feb 10, 2022
Added to ENISA EUVD
Feb 10, 2022
Last updated
Aug 13, 2026
Weakness Type
- CWE-306 Missing Authentication for Critical Function
References
- advisory101304
- advisory1039608
- patchhttp://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS Security).
Affected: WebLogic Server (Oracle) versions 10.3.6.0.0, 12.1.3.0.0, 12.2.1.1.0, 12.2.1.2.0, >= 10.3.6.0.0. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jan 17, 2017 and is known to be used in ransomware campaigns.
Yes. It was added on Feb 10, 2022 with a federal remediation due date of Aug 10, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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