CVE-2019-19530 — In the Linux kernel before 5
In the Linux kernel before 5.2.10, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/class/cdc-acm.c driver, aka CID-c52873e5a1ef.
Published
2019-12-03T16:15:13.190
Last modified
2026-10-08T21:17:19.357
CVSS vector
AV:L/AC:L/Au:N/C:N/I:N/A:C
01What is this vulnerability?
In the Linux kernel before 5.2.10, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/class/cdc-acm.c driver, aka CID-c52873e5a1ef.
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2019-12-03T16:15:13.190
- Last modified: 2026-10-08T21:17:19.357
09References
- lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
- www.openwall.com — http://www.openwall.com/lists/oss-security/2019/12/03/4
- cdn.kernel.org — https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.10
- git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
- www.openwall.com — http://www.openwall.com/lists/oss-security/2019/12/03/4
- cdn.kernel.org — https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.10
- git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5…
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