How severe is CVE-2025-29931?

CVE-2025-29931 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-29931 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-29931?

CVE-2025-29931 affects Siemens Telecontrol Server Basic. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-29931?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-29931 have an EU (EUVD) identifier?

Yes. CVE-2025-29931 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11509.

When was CVE-2025-29931 published?

CVE-2025-29931 was published on 2025-04-17 and last updated on 2026-06-17.

CVE-2025-29931

CVE-2025-29931 is a low-severity vulnerability in Siemens Telecontrol Server Basic with a CVSS 3.x base score of 3.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-130.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
CVSS v4: 6.3
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-11509
Weakness: CWE-130
Affected product: Siemens Telecontrol Server Basic
Published: 2025-04-17
Last modified: 2026-06-17

Description

A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected product does not properly validate a length field in a serialized message which it uses to determine the amount of memory to be allocated for deserialization. This could allow an unauthenticated remote attacker to cause the application to allocate exhaustive amounts of memory and subsequently create a partial denial of service condition. Successful exploitation is only possible in redundant Telecontrol Server Basic setups and only if the connection between the redundant servers has been disrupted.

Frequently asked questions

What is CVE-2025-29931?: A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected product does not properly validate a length field in a serialized message which it uses to determine the amount of memory to be allocated for deserialization. This could allow an unauthenticated remote attacker to cause the application to allocate exhaustive amounts of memory and subsequently create a partial denial of service condition. Successful exploitation is only possible in redundant Telecontrol Server Basic setups and only if the connection between the redundant servers has been disrupted.
How severe is CVE-2025-29931?: CVE-2025-29931 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-29931 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-29931?: CVE-2025-29931 affects Siemens Telecontrol Server Basic. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-29931?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-29931 have an EU (EUVD) identifier?: Yes. CVE-2025-29931 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11509.
When was CVE-2025-29931 published?: CVE-2025-29931 was published on 2025-04-17 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/html/ssa-395348.html

Affected products (1)

cpe:2.3:a:siemens:telecontrol_server_basic:*:*:*:*:*:*:*:*

More vulnerabilities in Siemens Telecontrol Server Basic

CVE-2024-44102 — Critical (CVSS 10.0): A vulnerability has been identified in PP TeleControl Server Basic 1000 to 5000 V3.1 (6NH9910-0AA31-0AE1) (All versions…
CVE-2025-40765 — Critical (CVSS 9.8): A vulnerability has been identified in TeleControl Server Basic V3.1 (All versions >= V3.1.2.2 < V3.1.2.3). The…
CVE-2025-27540 — Critical (CVSS 9.8): A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is…
CVE-2025-27539 — Critical (CVSS 9.8): A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is…
CVE-2025-27495 — Critical (CVSS 9.8): A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.2). The affected application is…
CVE-2025-40942 — High (CVSS 8.8): A vulnerability has been identified in TeleControl Server Basic (All versions < V3.1.2.4). Affected application…

All CVEs affecting Siemens Telecontrol Server Basic →

Other CWE-130 vulnerabilities

CVE-2022-2714 — Critical (CVSS 9.8): Improper Handling of Length Parameter Inconsistency in GitHub repository francoisjacquet/rosariosis prior to 10.0.
CVE-2026-9054 — Critical (CVSS 9.2): An attacker sending tcp, il, rudp, rudp, or gre packets with a length less than the header size would trigger a kernel…
CVE-2022-1543 — High (CVSS 8.8): Improper handling of Length parameter in GitHub repository erudika/scoold prior to 1.49.4. When the text size is large…
CVE-2026-3868 — High (CVSS 8.7): An improper handling of the length parameter inconsistency vulnerability has been identified in Moxa’s Secure…
CVE-2026-5367 — High (CVSS 8.6): A flaw was found in OVN (Open Virtual Network). A remote attacker, by sending crafted DHCPv6 (Dynamic Host…
CVE-2022-20870 — High (CVSS 8.6): A vulnerability in the egress MPLS packet processing function of Cisco IOS XE Software for Cisco Catalyst 3650,…

Browse all CWE-130 vulnerabilities →