CVE-2019-16746: canonical ubuntu_linux
Vulnerability summary
CVE-2019-16746 is a critical (CVSS 9.8) vulnerability in canonical ubuntu_linux. EPSS estimates a 12.65% chance of exploitation in the next 30 days, higher than 96.2% of scored vulnerabilities.
Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 13% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 40 · Related 35Timeline
- 24-09-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17. It does not check the length of variable elements in a beacon head, leading to a buffer overflow.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
12.65%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
No change 0.00 pp
From 12.65% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu30 products
- linuxAll versions (No fix recorded) | < 4.4.0-168.197 | < 4.15.0-72.81
- linux-aws< 4.4.0-1058.62 | < 4.4.0-1098.109 | < 4.15.0-1056.58
- linux-aws-5.0< 5.0.0-1022.25~18.04.1
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
- linux-aws-hwe< 4.15.0-1056.58~16.04.1
Debian2 products
- linux< 5.3.7-1
- debian_linuxEOL8.0
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04 | 19.04 | 19.10
Fedoraproject1 product
- fedoraEOL30
Linux1 product
- linux_kernel≥ 2.6.25, < 3.16.79 | ≥ 3.17, < 4.4.197 | ≥ 4.5, < 4.9.197 | ≥ 4.10, < 4.14.149 | ≥ 4.15, < 4.19.79 | ≥ 4.20, < 5.3.6
Opensuse1 product
- leapEOL15.1
6 vendors · 36 products
References
21 links
lists.debian.org/debian-lts-announce/2020/01/msg00013.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
Show all 21 references
- packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlX Refsource MISCThird Party AdvisoryVDB Entry
- marc.info?l=linux-wireless&m=156901391225058&w=2X Refsource MISCMailing ListPatchThird Party AdvisoryREPORT