Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2019-19344

23
FAUCET Score

CVE-2019-19344 is a use-after-free vulnerability affecting Samba versions 4.9.x, 4.10.x, and 4.11.x, specifically due to improper handling of memory reallocation. This flaw impacts products from vendors such as Canonical, OpenSUSE, Samba, and Synology. With a CVSS score of 6.5 (Medium), it can be exploited remotely with low attack complexity and requires low privileges, potentially leading to high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.9.0, < 4.9.18CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
>= 4.10.0, < 4.10.12CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
>= 4.11.0, < 4.11.5CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.07%
Probability of exploitation in next 30 days
EPSS Percentile
86.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0307 is in the 95th percentile among its peer group of 21,954 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2019-19344Moderate

samba: Use after free during DNS zone scavenging in Samba AD DC

Jan 21, 2020

References

lists.opensuse.org / opensuse-security-announce/2020-01/msg00055.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2023/09/msg00013.html
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/4ACZVNMIFQGGXNJPMHAVBN3H2U65FXQY
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/GQ6U65I2K23YJC4FESW477WL55TU3PPT
security.gentoo.org / glsa/202003-52
security.netapp.com / advisory/ntap-20200122-0001
Third Party Advisory
usn.ubuntu.com / 4244-1
Third Party Advisory
samba.org / samba/security/CVE-2019-19344.html
Vendor Advisory
synology.com / security/advisory/Synology_SA_20_01
Third Party Advisory