CVE-2025-50464
CVE-2025-50464 is a medium-severity vulnerability in Iptime Nas Firmware 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-121.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (39th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-23201
- Weakness: CWE-121
- Affected product: Iptime Nas Firmware
- Published:
- Last modified:
Description
A buffer overflow vulnerability exists in the upload.cgi module of the iptime NAS firmware v1.5.04. The vulnerability arises due to the unsafe use of the strcpy function to copy attacker-controlled data from the CONTENT_TYPE HTTP header into a fixed-size stack buffer (v8, allocated 8 bytes) without bounds checking. Since this operation occurs before authentication logic is executed, the vulnerability is exploitable pre-authentication.
Frequently asked questions
- What is CVE-2025-50464?
- A buffer overflow vulnerability exists in the upload.cgi module of the iptime NAS firmware v1.5.04. The vulnerability arises due to the unsafe use of the strcpy function to copy attacker-controlled data from the CONTENT_TYPE HTTP header into a fixed-size stack buffer (v8, allocated 8 bytes) without bounds checking. Since this operation occurs before authentication logic is executed, the vulnerability is exploitable pre-authentication.
- How severe is CVE-2025-50464?
- CVE-2025-50464 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2025-50464 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-50464?
- CVE-2025-50464 affects Iptime Nas Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-50464?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-50464 have an EU (EUVD) identifier?
- Yes. CVE-2025-50464 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23201.
- When was CVE-2025-50464 published?
- CVE-2025-50464 was published on 2025-07-30 and last updated on 2026-06-17.
References
- https://github.com/lafdrew/IOT/blob/main/iptime_nas_1.5.04/Buffer-Overflow-in-upload-cgi-of-iptime-nas-1-5-04.md
- https://lafdrew.github.io/2025/04/25/Buffer-Overflow-in-upload-cgi-of-iptime-nas-1-5-04/
Affected products (1)
- cpe:2.3:o:iptime:nas_firmware:1.5.04:*:*:*:*:*:*:*
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