CVE-2019-15504: canonical ubuntu_linux Double Free
Vulnerability summary
CVE-2019-15504 is a high (CVSS 10.0) Double Free vulnerability in canonical ubuntu_linux. EPSS estimates a 4.31% chance of exploitation in the next 30 days, higher than 91.1% of scored vulnerabilities.
Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 4% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 23-08-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
drivers/net/wireless/rsi/rsi_91x_usb.c in the Linux kernel through 5.2.9 has a Double Free via crafted USB device traffic (which may be remote via usbip or usbredir).
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
4.31%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.31% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not 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.
Ubuntu9 products
- linuxAll versions (No fix recorded)
- linux-awsAll versions (No fix recorded)
- linux-azureAll versions (No fix recorded) | < 5.0.0-1023.24~18.04.1
- linux-gcp< 5.0.0-1021.21~18.04.1
- linux-gke-5.0< 5.0.0-1023.23~18.04.2
Canonical1 product
- ubuntu_linuxEOL18.04 | 19.04
Debian1 product
- linux< 5.2.17-1
Linux1 product
- linux_kernel≥ 4.17, < 4.19.74 | ≥ 4.20, < 5.2.16
4 vendors · 12 products
References
15 linksShow all 15 references
- git.kernel.org/pub/…REPORT