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-2019-3817

27
FAUCET Score

CVE-2019-3817 is a high-severity use-after-free vulnerability in libcomps versions prior to 0.1.10, specifically affecting how ObjMRTrees are merged within rpm libcomps. An attacker can exploit this by tricking an application into processing a specially crafted XML file, potentially leading to application crashes or arbitrary code execution. With a CVSS score of 8.8, this vulnerability is easily exploitable over a network with user interaction, allowing for high impact on confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and community discussion is minimal, the potential for significant harm remains.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.1.10CPE matchmatch criteria
cpe:2.3:a:rpm:libcomps:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.72%
Probability of exploitation in next 30 days
EPSS Percentile
75.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0172 is in the 74th percentile among its peer group of 14,825 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (12)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7 ExtrasFixed in: libcomps-0:0.1.8-13.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: createrepo_c-0:0.11.0-3.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: dnf-0:4.2.7-6.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: dnf-plugins-core-0:4.0.8-3.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libcomps-0:0.1.11-2.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libdnf-0:0.35.1-8.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: librepo-0:1.10.3-3.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: librhsm-0:0.0.3-3.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libsolv-0:0.7.4-3.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: microdnf-0:3.0.1-3.el8
View patch
redhatvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2019-3817Moderate

libcomps: use after free when merging two objmrtrees

Jan 21, 2019

References

access.redhat.com / errata/RHSA-2019:3583
access.redhat.com / errata/RHSA-2019:3898
bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingVendor Advisory
github.com / rpm-software-management/libcomps/commit/e3a5d056633677959ad924a51758876d415e7046
PatchThird Party Advisory
github.com / rpm-software-management/libcomps/issues/41
ExploitIssue TrackingThird Party Advisory