How severe is CVE-2024-23811?

CVE-2024-23811 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-23811 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-23811?

CVE-2024-23811 primarily affects Siemens Sinec Nms. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-23811?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-23811 have an EU (EUVD) identifier?

Yes. CVE-2024-23811 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21264.

When was CVE-2024-23811 published?

CVE-2024-23811 was published on 2024-02-13 and last updated on 2026-06-17.

CVE-2024-23811

CVE-2024-23811 is a high-severity vulnerability in Siemens Sinec Nms with a CVSS 3.x base score of 8.8. 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-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-21264
Weakness: CWE-434
Affected product: Siemens Sinec Nms
Published: 2024-02-13
Last modified: 2026-06-17

Description

A vulnerability has been identified in SINEC NMS (All versions < V2.0 SP1). The affected application allows users to upload arbitrary files via TFTP. This could allow an attacker to upload malicious firmware images or other files, that could potentially lead to remote code execution.

Frequently asked questions

What is CVE-2024-23811?: A vulnerability has been identified in SINEC NMS (All versions < V2.0 SP1). The affected application allows users to upload arbitrary files via TFTP. This could allow an attacker to upload malicious firmware images or other files, that could potentially lead to remote code execution.
How severe is CVE-2024-23811?: CVE-2024-23811 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-23811 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-23811?: CVE-2024-23811 primarily affects Siemens Sinec Nms. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-23811?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-23811 have an EU (EUVD) identifier?: Yes. CVE-2024-23811 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21264.
When was CVE-2024-23811 published?: CVE-2024-23811 was published on 2024-02-13 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/html/ssa-943925.html

Affected products (2)

cpe:2.3:a:siemens:sinec_nms:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:sinec_nms:2.0:-:*:*:*:*:*:*

More vulnerabilities in Siemens Sinec Nms

CVE-2025-40736 — Critical (CVSS 9.8): A vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected application exposes an endpoint…
CVE-2021-39275 — Critical (CVSS 9.8): ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted…
CVE-2024-41940 — Critical (CVSS 9.1): A vulnerability has been identified in SINEC NMS (All versions < V3.0). The affected application does not properly…
CVE-2021-33725 — Critical (CVSS 9.1): A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). The affected system allows to…
CVE-2021-33724 — Critical (CVSS 9.1): A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). The affected system contains an…
CVE-2021-40438 — Critical (CVSS 9.0): A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user.…

All CVEs affecting Siemens Sinec Nms →

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

CVE-2026-48283 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
CVE-2025-69129 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in WordPress & WooCommerce Scraper Plugin, Import Data from Any Site <= 1.0.7…
CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…

Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →