How severe is CVE-2025-8845?

CVE-2025-8845 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2025-8845 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-8845?

CVE-2025-8845 affects Nasm Netwide Assembler. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-8845?

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

Does CVE-2025-8845 have an EU (EUVD) identifier?

Yes. CVE-2025-8845 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24143.

When was CVE-2025-8845 published?

CVE-2025-8845 was published on 2025-08-11 and last updated on 2026-06-17.

CVE-2025-8845

CVE-2025-8845 is a medium-severity vulnerability in Nasm Netwide Assembler with a CVSS 3.x base score of 5.3. 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-119.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.3
CVSS v4: 1.9
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-24143
Weakness: CWE-119
Affected product: Nasm Netwide Assembler
Published: 2025-08-11
Last modified: 2026-06-17

Description

A vulnerability was identified in NASM Netwide Assember 2.17rc0. This issue affects the function assemble_file of the file nasm.c. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-8845?: A vulnerability was identified in NASM Netwide Assember 2.17rc0. This issue affects the function assemble_file of the file nasm.c. The manipulation leads to stack-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-8845?: CVE-2025-8845 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-8845 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-8845?: CVE-2025-8845 affects Nasm Netwide Assembler. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-8845?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-8845 have an EU (EUVD) identifier?: Yes. CVE-2025-8845 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24143.
When was CVE-2025-8845 published?: CVE-2025-8845 was published on 2025-08-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nasm:netwide_assembler:2.17:rc0:*:*:*:*:*:*

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