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CVE-2019-9893

31
FAUCET Score

CVE-2019-9893 describes a critical vulnerability in libseccomp versions prior to 2.4.0, where incorrect generation of 64-bit syscall argument comparisons could allow attackers to bypass seccomp filters. This flaw carries a CVSS score of 9.8 (CRITICAL) due to its network-exploitable nature, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. Despite its severity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.4.0CPE matchmatch criteria
cpe:2.3:a:libseccomp_project:libseccomp:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
3.04%
Probability of exploitation in next 30 days
EPSS Percentile
86.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0304 is in the 77th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libseccomp-0:2.4.1-1.el8
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libseccomp

Vendor Advisories (1)

redhatCVE-2019-9893Moderate

libseccomp: incorrect generation of syscall filters in libseccomp

Mar 14, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-10/msg00022.html
lists.opensuse.org / opensuse-security-announce/2019-10/msg00027.html
access.redhat.com / errata/RHSA-2019:3624
github.com / seccomp/libseccomp/issues/139
Patch
seclists.org / oss-sec/2019/q1/179
Mailing ListPatchThird Party Advisory
security.gentoo.org / glsa/201904-18
usn.ubuntu.com / 4001-1
usn.ubuntu.com / 4001-2