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Oracle TimesTen CVE-2026-101600

| EUVDEUVD-2026-106008 LOW
2026-10-20 secalert_us@oracle.com GHSA-3p8f-mqx8-jx37
3.6
CVSS 3.1 · NVD
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain low-privileged local logon on host
  2. Exploit
    Satisfy complex preconditions and exploit TimesTen IMDB flaw
  3. Impact
    Read subset and modify some accessible database data

Vulnerability Assessment

Exploitation Conditions

Exploitation requires the attacker to already hold a low-privileged local logon account on the infrastructure where Oracle TimesTen In-Memory Database (versions 26.1 through 26.1.1.3.0) executes - remote exploitation is not possible (AV:L). High attack complexity (AC:H) further means the attacker must satisfy conditions outside their control (e.g., winning a race or specific runtime/configuration state) for the attack to succeed. These limiting factors - mandatory local authenticated access plus difficult preconditions - substantially constrain realistic exploitation, and impact is confined to partial read and partial modify/insert/delete of a subset of database-accessible data with no availability impact.

Impact

This is a low-severity issue (CVSS 3.1 base 3.6) that should rank near the bottom of any prioritization queue. The vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N shows every signal pointing away from easy exploitation: local attack vector (AV:L) requires the attacker to already have logon access to the host running TimesTen, high attack complexity (AC:H) means conditions outside the attacker's control must be met, and low privileges (PR:L) are still required. Impact is limited to partial confidentiality and integrity (C:L/I:L) with no availability impact (A:N). No EPSS score, CISA KEV listing, or POC is present in the provided data - so there is no public exploit identified at time of analysis and no evidence of active exploitation. All signals are consistent and point to a genuinely low real-world risk; there is no high-CVSS-but-overblown dynamic here because the CVSS itself is low. Note one metadata conflict: the input Tags include 'Authentication Bypass,' which contradicts the description and CVSS vector - the flaw requires an authenticated low-privileged local user (PR:L) rather than bypassing authentication; treat that tag as erroneous.

Exploit ScenarioDerived

A low-privileged user who already has a local login on the server hosting Oracle TimesTen In-Memory Database leverages a difficult-to-exploit flaw in the TimesTen IMDB component to gain unauthorized read access to a subset of database data and unauthorized update, insert, or delete access to some accessible data. The high attack complexity means the attacker must satisfy specific preconditions on the host, and no public exploit code is known to exist.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 21, 2026

Low-privileged local users on infrastructure running Oracle TimesTen In-Memory Database 26.1 through 26.1.1.3.0 can read and modify a limited subset of database-accessible data, with no availability impact, according to a CVSS 3.1 base score of 3.6. Exploitation requires a local logon and high-complexity conditions outside the attacker's control, so remote exploitation is not possible and the issue is low severity; no public exploit identified at time of analysis and it is not in CISA KEV.

RemediationAI

Apply the Oracle fix identified in the October 2026 Critical Patch Update advisory for TimesTen IMDB (https://www.oracle.com/security-alerts/cpuoct2026.html); the supplied data does not specify the exact patched version, so confirm the fixed release in the advisory and upgrade all instances from 26.1-26.1.1.3.0. If upgrading immediately is not possible, restrict local interactive logon on TimesTen hosts to trusted, least-privileged accounts and use role-based exceptions because this can affect legitimate DBA access; run TimesTen under a dedicated OS account; audit and remove unnecessary local accounts; and monitor database activity for unexpected reads or inserts, updates, and deletes. These controls reduce exposure to the required local attack path but do not remove the underlying flaw.

Affected VersionsENISA

Oracle TimesTen In-Memory Database 26.1 ≤26.1.1.3.0

Affected Packages

euvd oracle_timesten_in_memory_database no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Oracle TimesTen In-Memory Database is an in-memory relational database used for low-latency workloads. The assessed CVSS vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N maps to a local attack (AV:L), high complexity (AC:H), low privileges (PR:L), no user interaction, unchanged scope, and partial confidentiality and integrity impact with no availability impact. No CWE is provided, so the precise defect class cannot be confirmed from the available data; the description points to an access-control or data-handling weakness reachable only after local logon to the host running TimesTen. Although the source tags include 'Authentication Bypass,' that label is not supported by the assessed vector, which requires PR:L local access, so it should not be interpreted as a pre-auth network bypass.

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Severity by source

NVD PRIMARY 3.6 LOW
AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
vuln.today AI 3.6 LOW

Requires local logon (AV:L) and low-privileged authentication (PR:L) with difficult preconditions (AC:H); partial read and write give C:L/I:L and no availability impact (A:N).

3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
4.0 AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

DescriptionNVD

Vulnerability in Oracle TimesTen In-Memory Database (component: TimesTen IMDB). Supported versions that are affected are 26.1-26.1.1.3.0. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle TimesTen In-Memory Database executes to compromise Oracle TimesTen In-Memory Database. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle TimesTen In-Memory Database accessible data as well as unauthorized read access to a subset of Oracle TimesTen In-Memory Database accessible data. CVSS 3.1 Base Score 3.6 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N).

Threat Intelligence Overview

EPSS Score
0.1%
Top 100% exploitable
Prevalence
Low
niche specialized in-memory database, limited to specific Oracle deployments
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity LOW
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Low

Priority Score

18
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +18
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

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