November 15, 2026

CVE Watchtower

CVE-2026-91479Uncontrolled Resource Consumption

NVDCVSS scored by secalert_us@oracle.com

Vulnerability Summary

Vulnerability in the RDBMS component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with access to the physical communication segment attached to the hardware where the RDBMS executes to compromise RDBMS. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of RDBMS. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Severity Level
MEDIUM(6.5)
Published Date
Oct 20, 2026
Last Modified
Oct 24, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.24%Probability
Root Weakness (CWE)
CWE-400: Uncontrolled Resource Consumption β†—
The product does not properly control the allocation and maintenance of a limited resource, enabling denial-of-service conditions.
CVSS v3.1 Base Metrics — Score 6.5 (MEDIUM)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack VectorAdjacent
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh

Affected & Patched Versions

Affected Versions
Not provided by NVD for this CVE.
Patched Versions
No patched version published yet
Until a fix ships, reduce exposure:
  • Restrict access to the affected service or interface to trusted networks.
  • Disable the affected feature if you do not need it.
  • Watch the vendor advisory for a firmware or software update.

What to do

Fix it during your normal patch cycle. No exploitation is confirmed yet.

  1. Check whether you run the affected product and which version.
  2. No patched version is listed yet. Limit access to the affected service to trusted networks, and disable the feature if you can.
  3. Subscribe to the vendor advisory so you learn when a fix ships.

Timeline

  • Oct 20, 2026Published
  • Oct 24, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 15, 2026 06:15 UTC