CVE-2025-49464
CVE-2025-49464 is a medium-severity vulnerability in Zoom with a CVSS 3.x base score of 6.5. 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-120.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 1% (43rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-21022
- Weakness: CWE-120
- Affected product: Zoom
- Published:
- Last modified:
Description
Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to conduct a denial of service via network access.
Frequently asked questions
- What is CVE-2025-49464?
- Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to conduct a denial of service via network access.
- How severe is CVE-2025-49464?
- CVE-2025-49464 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-49464 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-49464?
- CVE-2025-49464 affects Zoom. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-49464?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-49464 have an EU (EUVD) identifier?
- Yes. CVE-2025-49464 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21022.
- When was CVE-2025-49464 published?
- CVE-2025-49464 was published on 2025-07-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:zoom:zoom:*:*:*:*:*:windows:*:*
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