CVE-2019-19530: debian debian_linux Use After Free
CVSS: 4.9v2.0MediumModified
AliasesUBUNTU-CVE-2019-19530DEBIAN-CVE-2019-19530
Published 03-12-2019Last modified 08-10-2026
Vulnerability summary
CVE-2019-19530 is a medium (CVSS 4.9) Use After Free vulnerability in debian debian_linux. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.5% of scored vulnerabilities.
CVSS score
4.9/10
010
Medium · v2.0 (NVD)EPSS score
0.43%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 18 · Related 14DLA-2068-1DLA-2114-1OPENSUSE-SU-2019:2675-1RHSA-2020:4060RHSA-2020:4062SUSE-SU-2019:3289-1SUSE-SU-2019:3316-1SUSE-SU-2019:3317-1SUSE-SU-2019:3372-1SUSE-SU-2019:3379-1SUSE-SU-2019:3381-1SUSE-SU-2019:3389-1SUSE-SU-2020:0093-1SUSE-SU-2020:0584-1SUSE-SU-2020:0599-1SUSE-SU-2020:0613-1SUSE-SU-2020:1255-1SUSE-SU-2020:14354-1
Timeline
- 03-12-2019PublishedVulnerability first disclosed.
- 08-10-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 4.6Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · DebianEcosystem advisory · calculated4.6MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST4.6MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 4.9Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:N/I:N/A:CSourcesSingle source
EPSS trend
Probability
0.43%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
0.00 pp
From 0.43% on 19-09-2026
19-09-202619-10-2026
EPSS score0.43%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu28 products
- linuxAll versions (No fix recorded) | < 4.4.0-166.195 | < 4.15.0-65.74
- linux-aws< 4.4.0-1056.60 | < 4.4.0-1096.107 | < 4.15.0-1051.53
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
- linux-aws-hwe< 4.15.0-1051.53~16.04.1
- linux-azure< 4.15.0-1060.65~14.04.1 | < 4.15.0-1060.65 | < 5.0.0-1022.23~18.04.1
Debian2 products
- linux< 5.2.17-1
- debian_linuxEOL8.0
Linux1 product
- linux_kernel< 5.2.10
Opensuse1 product
- leapEOL15.1
4 vendors · 32 products
References
10 links- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.10X Refsource MISCREPORTIssue TrackingVendor Advisory
- www.openwall.com/lists/oss-security/2019/12/03/4Mailing ListX Refsource MLISTREPORTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
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