CVE-2020-25039
No exploitation reported by the sources we read.
- Published2020-09-16
- WeaknessCWE-668
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Sylabs Singularity 3.2.0 through 3.6.2 has Insecure Permissions on temporary directories used in fakeroot or user namespace container execution.
Timeline
dates in UTC- 2020-09-1618:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-25039?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-25039?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 15.1 | = 15.1 | no fix published | NVD |
| 15.2 | = 15.2 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.x | ≥ 3.2.0, ≤ 3.6.2 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
Advisories and patches
- github.comMitigation
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.18.1read 2026-10-23
- NVDCVSS 2.05.5read 2026-10-23
- NVDweakness (CWE)CWE-668read 2026-10-23
- FIRST EPSSEPSS score2.0 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Published
- 2020-09-16
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2020-25039?
Is CVE-2020-25039 actively exploited?
What is the CVSS score for CVE-2020-25039?
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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Related vulnerabilities
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