VulnerabilityPublished 15 Sep 2026

CVE-2026-83078

Source GCVE Database

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Authoritative record:CVE-2026-83078· High 8.2

Not known to be exploited · CVSS 8.2 High.

Data as of 31 Oct 2026, 08:20 UTC

CVSS 3.1 base score

8.2High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

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

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 15 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-g527-g3w5-gvxj

What to do

Affected software

Product	Affected	Fixed in
Oracle CorporationSiebel CRM Cloud Applications	Affected >=22.3 <=26.7	Fixed in–

AI-suggested

Oracle has released a Critical Security Patch Update in September 2026 that addresses this vulnerability. Customers should apply the official Oracle patches from this update without delay to remediate the issue. Oracle strongly recommends remaining on actively supported versions and promptly applying security patches. Patch status is confirmed as official-fix via the Oracle advisory. No additional mitigation steps are indicated beyond applying the provided patches.

Description

A vulnerability exists in the Siebel CRM Cloud Applications product of Oracle Siebel CRM, specifically in the Siebel Cloud Manager component. This flaw affects supported versions from 22.3 through 26.7. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized access to critical data or full access to all accessible Siebel CRM Cloud Applications data, including the ability to update, insert, or delete some data. The vulnerability has a CVSS 3.1 base score of 8.2, indicating high severity with significant confidentiality and integrity impacts.

Impact

Successful exploitation can lead to unauthorized access to critical and all accessible data within Siebel CRM Cloud Applications, as well as unauthorized modification (update, insert, delete) of some data. This compromises confidentiality and integrity of the affected system's data. There is no reported impact on availability. No known exploits in the wild have been reported at this time.

Summary

The vulnerability in Oracle Siebel CRM Cloud Applications (Siebel Cloud Manager component) affects versions 22.3 to 26.7. It is an easily exploitable network vulnerability requiring no authentication and no user interaction, allowing attackers to compromise critical data confidentiality and partially impact data integrity. The CVSS vector is AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N, reflecting high confidentiality impact and low integrity impact without availability impact. Oracle has included this vulnerability in its September 2026 Critical Security Patch Update (CSPU), which provides targeted high-priority fixes. Customers are strongly advised to apply the patches provided in this update promptly to mitigate the risk.

References

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