How severe is CVE-2025-15351?

CVE-2025-15351 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-15351 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-15351?

CVE-2025-15351 affects Anritsu Vectorstar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-15351?

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-2025-15351 have an EU (EUVD) identifier?

Yes. CVE-2025-15351 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4486.

When was CVE-2025-15351 published?

CVE-2025-15351 was published on 2026-01-23 and last updated on 2026-06-17.

CVE-2025-15351

CVE-2025-15351 is a high-severity vulnerability in Anritsu Vectorstar with a CVSS 3.x base score of 7.8. 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-502.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-4486
Weakness: CWE-502
Affected product: Anritsu Vectorstar
Published: 2026-01-23
Last modified: 2026-06-17

Description

Anritsu VectorStar CHX File Parsing Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Anritsu VectorStar. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of CHX files. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27040.

Frequently asked questions

What is CVE-2025-15351?: Anritsu VectorStar CHX File Parsing Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Anritsu VectorStar. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of CHX files. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27040.
How severe is CVE-2025-15351?: CVE-2025-15351 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-15351 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-15351?: CVE-2025-15351 affects Anritsu Vectorstar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-15351?: 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-2025-15351 have an EU (EUVD) identifier?: Yes. CVE-2025-15351 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4486.
When was CVE-2025-15351 published?: CVE-2025-15351 was published on 2026-01-23 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-25-1202/

Affected products (1)

cpe:2.3:a:anritsu:vectorstar:2024.11.1:*:*:*:*:*:*:*

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