id: PYSEC-2026-1838
published: "2026-07-07T11:45:40.262027Z"
modified: "2026-07-07T17:25:13.411972Z"
aliases:
- CVE-2023-46960
- GHSA-82wx-rxf8-fxch
summary: PyPXE Buffer Overflow vulnerability
details: Buffer Overflow vulnerability in PyPXE v.1.8.4 allows a remote attacker to cause a denial of service via the handle function in the tftp module.
affected:
- package:
    name: pypxe
    ecosystem: PyPI
    purl: pkg:pypi/pypxe
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - last_affected: 1.8.4
  versions:
  - "1.7"
  - 1.7.1
  - 1.7.2
  - 1.7.3
  - 1.8.0
  - 1.8.1
  - 1.8.2
  - 1.8.3
  - 1.8.4
references:
- type: ADVISORY
  url: https://nvd.nist.gov/vuln/detail/CVE-2023-46960
- type: WEB
  url: https://github.com/pypxe/PyPXE/issues/206
- type: PACKAGE
  url: https://github.com/pypxe/PyPXE
- type: PACKAGE
  url: https://pypi.org/project/pypxe
- type: ADVISORY
  url: https://github.com/advisories/GHSA-82wx-rxf8-fxch
severity:
- type: CVSS_V3
  score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
- type: CVSS_V4
  score: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N