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-2019-13224

32
FAUCET Score

CVE-2019-13224 describes a critical use-after-free vulnerability in Oniguruma 6.9.2, specifically within the onig_new_deluxe() function, affecting products like Canonical, Debian, Fedora, Oniguruma Project, and PHP. This flaw allows an unauthenticated attacker to trigger information disclosure, denial of service, or potentially arbitrary code execution by supplying a specially crafted regular expression and string with a multi-byte encoding. With a CVSS score of 9.8 (Critical), the attack complexity is low, requiring no user interaction. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
6.9.2CPE matchmatch criteria
cpe:2.3:a:oniguruma_project:oniguruma:6.9.2:-:*:*:*:*:*:*
>= 7.1.0, < 7.1.32CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 7.2.0, < 7.2.23CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 7.3.0, < 7.3.9CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
29CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
4.05%
Probability of exploitation in next 30 days
EPSS Percentile
89.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0405 is in the 83rd percentile among its peer group of 36,897 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 (10)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: php:7.3-8020020200715124551.ceb1cf90
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: oniguruma-0:6.8.2-2.1.el8_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: oniguruma-0:6.8.2-2.1.el8_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: oniguruma-0:6.8.2-2.1.el8_8
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: php:7.2/php
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: oniguruma
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-php72-php

Vendor Advisories (1)

redhatCVE-2019-13224Moderate

oniguruma: Use-after-free in onig_new_deluxe() in regext.c

Jun 27, 2019

References

github.com / kkos/oniguruma/commit/0f7f61ed1b7b697e283e37bd2d731d0bd57adb55
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/07/msg00013.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/JWCPDTZOIUKGMFAD5NAKUB7FPJFAIQN5
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/SNL26OZSQRVLEO6JRNUVIMZTICXBNEQW
security.gentoo.org / glsa/201911-03
Third Party Advisory
support.f5.com / csp/article/K00103182
Third Party Advisory
support.f5.com / csp/article/K00103182
usn.ubuntu.com / 4088-1
Third Party Advisory