CVE-2025-42885VulnerabilityPublished 11 Nov 2025Updated 12 Nov 2025

CVE-2025-42885: SAP HANA 2.0 (hdbrss) · Missing Authentication

Affects SAP HANA 2.0 (hdbrss)Source CVE Database V5

Not known to be exploited · CVSS 5.8 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

5.8Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 25% 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:C/C:L/I:N/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Changed
Confidentiality: Low
Integrity: None
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: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within 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 11 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 2026-10-25.

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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC 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.

What to do

Affected software

Product	Affected	Fixed in
SAP_SE SAP HANA 2.0 (hdbrss)	Affected =2.00	Fixed in–

AI-suggested

1. Monitor SAP security advisories regularly for official patches addressing CVE-2025-42885 and apply them promptly once available. 2. Implement strict network segmentation to limit access to SAP HANA 2.0 (hdbrss) services only to trusted internal hosts and administrators. 3. Employ firewall rules and access control lists (ACLs) to restrict inbound traffic to the SAP HANA instance, minimizing exposure to untrusted networks. 4. Enable and review detailed logging and monitoring on SAP HANA to detect anomalous or unauthorized access attempts to the hdbrss component. 5. Conduct internal audits to identify any unnecessary remote-enabled functions and disable or restrict them where possible. 6. Use SAP’s built-in security features to enforce authentication and authorization policies, compensating for the missing authentication in this specific function until patched. 7. Educate IT and security teams about this vulnerability to ensure rapid incident response if exploitation attempts are detected. 8. Consider deploying network intrusion detection/prevention systems (IDS/IPS) tuned to detect suspicious SAP HANA traffic patterns related to this vulnerability.

Description

Due to missing authentication, SAP HANA 2.0 (hdbrss) allows an unauthenticated attacker to call a remote-enabled function that will enable them to view information. As a result, it has a low impact on the confidentiality but no impact on the integrity and availability of the system.

Impact

For European organizations, the impact primarily concerns the confidentiality of sensitive data managed within SAP HANA 2.0 environments. Given SAP HANA's role in enterprise resource planning, financial systems, and critical business operations, unauthorized information disclosure could lead to competitive disadvantage, regulatory non-compliance (e.g., GDPR), and erosion of customer trust. Although the vulnerability does not compromise data integrity or system availability, the exposure of sensitive information could facilitate further attacks or insider threats. The medium severity score reflects that while the impact is limited to confidentiality, the ease of exploitation without authentication increases risk. Organizations in sectors such as finance, manufacturing, and public administration—where SAP HANA is widely deployed—are particularly at risk. Additionally, the cross-scope nature of the vulnerability means that attackers might leverage this flaw to gain insights into other connected systems or data repositories, amplifying potential damage.

CWE-306Missing Authentication for Critical Function (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #21OWASP Top 10 A07:2025: Authentication Failures (opens in a new tab)
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
Architecture and Design
Divide the software into anonymous, normal, privileged, and administrative areas. Identify which of these areas require a proven user identity, and use a centralized authentication capability.
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks…
Architecture and Design
Where possible, avoid implementing custom, "grow-your-own" authentication routines and consider using authentication capabilities as provided by the surrounding framework, operating system, or environment.
OWASP Cheat Sheets
OWASP Authentication (opens in a new tab)
OWASP ASVS 4.0.3
V1.2.3 (opens in a new tab)
V1.2.2 (opens in a new tab)
V1.2.4 (opens in a new tab)
Attack patterns
Choosing Message Identifier (opens in a new tab)
Force the System to Reset Values (opens in a new tab)
Using Unpublished Interfaces or Functionality (opens in a new tab)
Cross Site Request Forgery (opens in a new tab)
Communication Channel Manipulation (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 18 Nov 2025, 04:47 UTC

WeaknessesCWE-306

Technical details

References

Community reviews

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