CVE-2019-17666
A public proof of concept exists; no exploitation attested.
- Published2019-10-17
- Fixed in5.3.9 · 5.2 · 4.19.82 · 4.14.152 · 4.9.199 · 4.4.199
- WeaknessCWE-120
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
rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel through 5.3.6 lacks a certain upper-bound check, leading to a buffer overflow.
Timeline
dates in UTC- 2019-10-1702:15CVE publishedNVD
- 2026-10-2319:23First public proof of conceptPoC-in-GitHub
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-17666?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-17666?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 | ≥ 5.3, < 5.3.9 | 5.3.9 | NVD |
| 5.2 | ≥ 4.20, < 5.2 | 5.2 | NVD |
| 4.x | ≥ 4.15, < 4.19.82 | 4.19.82 | NVD |
| 4.x | ≥ 4.10, < 4.14.152 | 4.14.152 | NVD |
| 4.x | ≥ 4.5, < 4.9.199 | 4.9.199 | NVD |
| 4.4 | ≥ 3.17, < 4.4.199 | 4.4.199 | NVD |
| 3.16 | < 3.16.77 | 3.16.77 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 14.4 | = 14.04 | no fix published | NVD |
| 16.4 | = 16.04 | no fix published | NVD |
| 18.4 | = 18.04 | no fix published | NVD |
| 19.4 | = 19.04 | no fix published | NVD |
| 19.10 | = 19.10 | 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 5.3.9 · 5.2 · 4.19.82 · 4.14.152 · 4.9.199 · 4.4.199 · 3.16.77
Advisories and patches
- lkml.orgPatch
Detection
read 2026-10-23 19:23 UTC- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
Sources
- NVDCVSS 3.18.8read 2026-10-23
- NVDCVSS 2.08.3read 2026-10-23
- NVDweakness (CWE)CWE-120read 2026-10-23
- FIRST EPSSEPSS score3.0 %2026-10-23
- PoC-in-GitHubproof of concept1read 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2019-10-17
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2019-17666?
Is CVE-2019-17666 actively exploited?
What is the CVSS score for CVE-2019-17666?
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