CVE-2026-24032Disclosure

LOWCVSS 6.9 · MEDIUM

Exploitation ongoing with high activity in latest observed window (1 mentions)

Immediate actions

Prioritize remediation for affected systems immediately
Assume compromise if assets are exposed
Track advisory updates for patch or workaround availability

Recommended action window: Immediate (within 24h)

NVD description

A vulnerability has been identified in SINEC NMS (All versions < V4.0 SP3 with UMC). The affected application contains an authentication weakness due to insufficient validation of user identity in the UMC component. This could allow an unauthenticated remote attacker to bypass authentication and gain unauthorized access to the application. (ZDI-CAN-27564)

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3.5/ 10 priority

Sources & remediation

Other references

https://cert-portal.siemens.com/productcert/html/ssa-801704.html

Weakness type (CWE)

CWE-347

Priority

LOW

Exploitation

ACTIVE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

Active exploitation appears in 1 classified signals
3 mentions across 3 observed days
Momentum state: stable

What's happening

Active exploitation reported across 1 signal
Technical details provided in 2 signals
Disclosure: 1 classified signal
General: 1 classified signal
Peaked 2d ago at 1 mentions (2026-04-14); latest day: 1
3 total mentions across 3 days

Deep dive

Activity timeline3 mentions / 3d

Signal classification3 categories

Disclosure

133.3%

General

133.3%

Active Exploitation

133.3%

Referenced assets3 URLs

By indicator

Classification over time

Date	Total	Labels

2026-04-14	1	Disclosure1
2026-04-21	1	General1
2026-04-22	1	Active Exploitation1

Full discourse3 posts

Aviatrix Threat Research Center@aviatrixtrc169d
Active Exploitation
TRC analysis shows attackers exploiting authentication bypass in Siemens SINEC NMS (CVE-2026-24032) to gain unauthorized access, then escalate privileges and move laterally across managed infrastructure. Runtime segmentation helps contain such post-compromise activity. #ZeroTrust 🔗 Full TRC analysis: https://aviatrix.ai/threat-research-center/icsa-26-111-03-cve-2026-24032
Post summary
Threat‑research report confirms that attackers are actively exploiting the authentication bypass in Siemens SINEC NMS (CVE‑2026‑24032) to gain unauthorized access and privilege escalation, with runtime segmentation suggested for containment.
0000059
1.9K followersView on X
CERT-PY@CERTpy170d
General
⚠️ Vulnerabilidades en productos Siemens ❗ CVE-2026-27668 ❗ CVE-2026-25654 ❗ CVE-2026-24032 ➡️ Más info: https://www.cert.gov.py/vulnerabilidades-en-productos-siemens-5/ https://t.co/xaUvGrjHyI
Post summary
The text lists several Siemens CVEs without providing any additional technical details, exploit information, patches, or evidence of active exploitation.
0000098
6.7K followersView on X
Vulmon Vulnerability Feed@VulmonFeeds177d
Disclosure
CVE-2026-24032 Authentication Bypass in SINEC NMS Versions Below 4.0 SP3 UMC Component https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-24032
Post summary
CVE‑2026‑24032, an authentication bypass in SINEC NMS UMC Component for versions below 4.0 SP3, has been disclosed with no mention of PoC, exploit, or mitigation.
0000042
4.0K followersView on X

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