CVE-2025-15359VulnerabilityPublished 30 Dec 2025

CVE-2025-15359: Delta Electronics DVP-12SE11T · Out-of-bounds Write

Affects Delta Electronics DVP-12SE11TSource CVE Database V5

Not known to be exploited · CVSS 9.1 Critical.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

9.1Critical

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 26% 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:N/I:H/A:H

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

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: None: There is no loss of confidentiality within the impacted component.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 30 Dec 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
Delta Electronics DVP-12SE11T	Affected =0	Fixed in–

AI-suggested

1. Immediate network segmentation: Isolate DVP-12SE11T devices from general IT networks and restrict access to trusted management stations only. 2. Implement strict firewall rules and access control lists (ACLs) to limit inbound traffic to the PLCs, allowing only necessary protocols and IP addresses. 3. Monitor network traffic for anomalous patterns indicative of exploitation attempts, such as unexpected memory access or malformed packets targeting the PLC. 4. Deploy intrusion detection/prevention systems (IDS/IPS) with signatures or heuristics tuned for industrial protocols used by Delta PLCs. 5. Enforce strong physical security controls to prevent unauthorized local access to the devices. 6. Coordinate with Delta Electronics for timely patching once a fix is released; prioritize patch deployment in critical environments. 7. Conduct regular security audits and vulnerability assessments focused on industrial control systems. 8. Train operational technology (OT) personnel on recognizing and responding to potential exploitation signs. 9. Maintain up-to-date backups and incident response plans tailored for industrial environments to minimize downtime in case of compromise. 10. Consider deploying application whitelisting or runtime integrity monitoring on PLC management systems to detect unauthorized changes.

Description

DVP-12SE11T - Out-of-bound memory write Vulnerability

Impact

For European organizations, the impact of CVE-2025-15359 is significant due to the widespread use of Delta Electronics PLCs in manufacturing, energy, transportation, and critical infrastructure sectors. Successful exploitation could lead to unauthorized manipulation of industrial processes, causing production downtime, equipment damage, or safety incidents. Integrity and availability impacts could disrupt supply chains and critical services, with potential economic and safety consequences. The vulnerability’s remote and unauthenticated nature increases the risk of attacks originating from external threat actors, including nation-state adversaries or cybercriminal groups targeting industrial control systems. Given Europe's reliance on automated industrial systems, this vulnerability could affect operational continuity and national infrastructure resilience. The absence of confidentiality impact reduces the risk of data theft but does not mitigate the severe operational risks posed by integrity and availability compromises. Organizations may face regulatory and compliance challenges if disruptions affect critical services or safety standards.

CWE-787Out-of-bounds Write (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #5
The product writes data past the end, or before the beginning, of the intended buffer.
Requirements · Language Selection
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Operation · Build and Compilation · Environment Hardening
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index…
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

filecenter.deltaww.com/news/download/doc/Delta-PCSA-2025-00022_DVP-12SE11T%20Multiple%20Vulnerabilities.pdf (opens in a new tab)

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 30 Dec 2025, 22:43 UTC

WeaknessesCWE-787

Technical details

References

Community reviews

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