CVE catalog

CVE-2020-15261

veyon affected and fixed versions

On Windows the Veyon Service before version 4.4.2 contains an unquoted service path vulnerability, allowing locally authenticated users with administrative privileges to run malicious executables with LocalSystem privileges. Since Veyon users (both students and teachers) usually don't have administrative privileges, this vulnerability is only dangerous in anyway unsafe setups. The problem has been fixed in version 4.4.2. As a workaround, the exploitation of the vulnerability can be prevented by revoking administrative privileges from all potentially untrustworthy users.

Severity: Low
Source: [NVD] · [CVE record]
EPSS: 11.25% · Oct 27, 2026

Projects and upstream resources

[veyon][Source-reported homepage]

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / release	Package	Version	Status	Source
Debiantrixie	veyon	Not reported	Not affectedDistribution reports not affected	[CVE-2020-15261]
Debiantrixie	veyon	`4.9.5+repack1-2`	Not affected	[CVE-2020-15261]
Debiansid	veyon	Not reported	Not affectedDistribution reports not affected	[CVE-2020-15261]
Debiansid	veyon	`4.9.7+repack1-1.1`	Not affected	[CVE-2020-15261]
Debianbookworm	veyon	Not reported	Not affectedDistribution reports not affected	[CVE-2020-15261]
Debianbookworm	veyon	`4.7.5+repack1-1`	Not affected	[CVE-2020-15261]

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
Debianbookworm	veyon	Not reported	Not affectedDistribution reports not affected	[CVE-2020-15261]
Debianbookworm	veyon	`4.7.5+repack1-1`	Not affected	[CVE-2020-15261]
Debiansid	veyon	Not reported	Not affectedDistribution reports not affected	[CVE-2020-15261]
Debiansid	veyon	`4.9.7+repack1-1.1`	Not affected	[CVE-2020-15261]
Debiantrixie	veyon	Not reported	Not affectedDistribution reports not affected	[CVE-2020-15261]
Debiantrixie	veyon	`4.9.5+repack1-2`	Not affected	[CVE-2020-15261]

Original provider fields

{
  "package_releases": [
    {
      "name": "veyon",
      "status": "not affected",
      "release": "sid",
      "version": "4.9.7+repack1-1.1"
    },
    {
      "name": "veyon",
      "status": "not affected",
      "release": "trixie",
      "version": "4.9.5+repack1-2"
    },
    {
      "name": "veyon",
      "status": "not affected",
      "release": "bookworm",
      "version": "4.7.5+repack1-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "veyon",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "unimportant",
      "fixed_version": "0"
    },
    {
      "bug": null,
      "name": "veyon",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": "0"
    },
    {
      "bug": null,
      "name": "veyon",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": "0"
    }
  ],
  "distribution_packages": []
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[libveyon-core]Unknown
Source package: [veyon]
Details (2)
- 4.7.5+repack1-1 · amd64 · bookworm
  Not affected
  dsa · veyon · debian · bookworm
- 4.7.5+repack1-1 · arm64 · bookworm
  Not affected
  dsa · veyon · debian · bookworm
[veyon-configurator]Unknown
Source package: [veyon]
Details (2)
- 4.7.5+repack1-1 · amd64 · bookworm
  Not affected
  dsa · veyon · debian · bookworm
- 4.7.5+repack1-1 · arm64 · bookworm
  Not affected
  dsa · veyon · debian · bookworm
[veyon-master]Unknown
Source package: [veyon]
Details (2)
- 4.7.5+repack1-1 · amd64 · bookworm
  Not affected
  dsa · veyon · debian · bookworm
- 4.7.5+repack1-1 · arm64 · bookworm
  Not affected
  dsa · veyon · debian · bookworm
[veyon-plugins]Unknown
Source package: [veyon]
Details (2)
- 4.7.5+repack1-1 · amd64 · bookworm
  Not affected
  dsa · veyon · debian · bookworm
- 4.7.5+repack1-1 · arm64 · bookworm
  Not affected
  dsa · veyon · debian · bookworm
[veyon-service]Unknown
Source package: [veyon]
Details (2)
- 4.7.5+repack1-1 · amd64 · bookworm
  Not affected
  dsa · veyon · debian · bookworm
- 4.7.5+repack1-1 · arm64 · bookworm
  Not affected
  dsa · veyon · debian · bookworm

Observed: Oct 23, 2026, 5:48:13 PM UTC

References

[https://security-tracker.debian.org/tracker/CVE-2020-15261]

[Debian Security Tracker] · [FIRST EPSS]