How severe is CVE-2025-36521?

CVE-2025-36521 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-36521 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-36521?

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-2025-36521 have an EU (EUVD) identifier?

Yes. CVE-2025-36521 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13265.

When was CVE-2025-36521 published?

CVE-2025-36521 was published on 2025-05-01 and last updated on 2026-06-17.

CVE-2025-36521

CVE-2025-36521 is a high-severity vulnerability 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-125.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.6
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-13265
Weakness: CWE-125
Published: 2025-05-01
Last modified: 2026-06-17

Description

MicroDicom DICOM Viewer is vulnerable to an out-of-bounds read which may allow an attacker to cause memory corruption within the application. The user must open a malicious DCM file for exploitation.

Frequently asked questions

What is CVE-2025-36521?: MicroDicom DICOM Viewer is vulnerable to an out-of-bounds read which may allow an attacker to cause memory corruption within the application. The user must open a malicious DCM file for exploitation.
How severe is CVE-2025-36521?: CVE-2025-36521 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-36521 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-36521?: 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-2025-36521 have an EU (EUVD) identifier?: Yes. CVE-2025-36521 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13265.
When was CVE-2025-36521 published?: CVE-2025-36521 was published on 2025-05-01 and last updated on 2026-06-17.

References

Other CWE-125 (Out-of-bounds Read) vulnerabilities

CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

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