CVE-2019-10220
A public proof of concept exists; no exploitation attested.
- Published2019-11-27
- Fixed in5.3.8 · 4.19.93 · 4.14.162 · 4.9.208 · 4.4.208 · 3.16.81
- WeaknessCWE-22
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
Linux kernel CIFS implementation, version 4.9.0 is vulnerable to a relative paths injection in directory entry lists.
Timeline
dates in UTC- 2019-11-2716:15CVE publishedNVD
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-10220?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-10220?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 |
|---|---|---|---|
| 5.3 | ≥ 4.20, < 5.3.8 | 5.3.8 | NVD |
| 4.x | ≥ 4.15, < 4.19.93 | 4.19.93 | NVD |
| 4.x | ≥ 4.10, < 4.14.162 | 4.14.162 | NVD |
| 4.x | ≥ 4.5, < 4.9.208 | 4.9.208 | NVD |
| 4.4 | ≥ 3.17, < 4.4.208 | 4.4.208 | NVD |
| 3.16 | ≥ 2.6.12, < 3.16.81 | 3.16.81 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 18.4 | = 18.04 | no fix published | NVD |
| 19.4 | = 19.04 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 8.0 | = 8.0 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Linux linux kernel to 5.3.8 · 4.19.93 · 4.14.162 · 4.9.208 · 4.4.208 · 3.16.81
Advisories and patches
- bugzilla.redhat.comPatch
Detection
read 2026-10-23 19:23 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- 1 repository, unverifiedTrinadh465/linux-3.0.35_CVE-2019-10220 PoC-in-GitHub
Sources
- NVDCVSS 3.18.8read 2026-10-23
- CNACVSS 3.08read 2026-10-23
- NVDCVSS 2.09.3read 2026-10-23
- CNAweakness (CWE)CWE-22read 2026-10-23
- NVDweakness (CWE)CWE-22read 2026-10-23
- FIRST EPSSEPSS score5.1 %2026-10-22
- PoC-in-GitHubproof of concept1read 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published
- 2019-11-27
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2019-10220?
Is CVE-2019-10220 actively exploited?
What is the CVSS score for CVE-2019-10220?
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