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-2023-25193

25
FAUCET Score

CVE-2023-25193 is a high-severity denial-of-service vulnerability in HarfBuzz, affecting versions up to 6.0.0, including Fedora Project distributions. Attackers can trigger an O(n^2) growth in processing time by crafting specific input with consecutive marks, leading to resource exhaustion. The vulnerability has a CVSS score of 7.5, is network-exploitable with low attack complexity, and requires no user interaction or privileges. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.0.0CPE matchmatch criteria
cpe:2.3:a:harfbuzz_project:harfbuzz:*:*:*:*:*:*:*:*
36CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.81%
Probability of exploitation in next 30 days
EPSS Percentile
76.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0181 is in the 59th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (40)

codesyspatch availablevia llm_extracted
View patch
esphomepatch availablevia llm_extracted
View patch
github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: cm1 qt5-qtbase 5.12.11-7 on CBL Mariner 1.0Fixed in: 5.12.11-7
microsoftpatch availablevia msrc
Product: cbl2 harfbuzz 3.4.0-3 on CBL Mariner 2.0Fixed in: 3.4.0-3
microsoftpatch availablevia msrc
Product: cbl2 qt5-qtbase 5.12.11-15 on CBL Mariner 2.0Fixed in: 5.12.11-15
microsoftpatch availablevia msrc
Product: 17848-16820Fixed in: 60.9.0-13
microsoftpatch availablevia msrc
Product: 17985-16820Fixed in: 3.4.0-1
microsoftpatch availablevia msrc
Product: 17864-16820Fixed in: 5.12.11-7
microsoftpatch availablevia msrc
Product: 17986-16823Fixed in: 3.4.0-3
microsoftpatch availablevia msrc
Product: 17384-16823Fixed in: 5.12.11-15
microsoftpatch availablevia msrc
Product: cm1 harfbuzz 3.4.0-1 on CBL Mariner 1.0Fixed in: 3.4.0-1
microsoftpatch availablevia msrc
Product: cm1 mozjs60 60.9.0-13 on CBL Mariner 1.0Fixed in: 60.9.0-13
redhatpatch availablevia redhat_api
Product: Red Hat Build of OpenJDK 17.0.8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: java-17-openjdk-1:17.0.8.0.7-2.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: java-11-openjdk-1:11.0.20.0.8-2.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: harfbuzz-0:1.7.5-4.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: java-11-openjdk-1:11.0.20.0.8-1.el8_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: java-11-openjdk-1:11.0.20.0.8-1.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: java-11-openjdk-1:11.0.20.0.8-1.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: java-11-openjdk-1:11.0.20.0.8-1.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: java-11-openjdk-1:11.0.20.0.8-1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: java-17-openjdk-1:17.0.8.0.7-1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: java-11-openjdk-1:11.0.20.0.8-1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: java-17-openjdk-1:17.0.8.0.7-1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsFixed in: java-11-openjdk-1:11.0.20.0.8-1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsFixed in: java-17-openjdk-1:17.0.8.0.7-1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: java-11-openjdk-1:11.0.20.0.8-1.el8_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: java-17-openjdk-1:17.0.8.0.7-1.el8_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: java-11-openjdk-1:11.0.20.0.8-2.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: java-17-openjdk-1:17.0.8.0.7-2.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: harfbuzz-0:2.7.4-10.el9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: java-11-openjdk-1:11.0.20.0.8-1.el9_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: java-17-openjdk-1:17.0.8.0.7-1.el9_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Build of OpenJDK 11.0.20
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: java-11-openjdk-1:11.0.20.0.8-1.el7_9
View patch
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 17Fixed in: Linux
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 17Fixed in: Windows
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 11Fixed in: Linux
redhatno patchvia redhat_api
Product: Red Hat build of OpenJDK 11Fixed in: Windows

Vendor Advisories (4)

codesysllm-codesys-fe85e88fbae25bb9CRITICAL

HP ThinPro 8.1 SP7 Security Updates

Jun 3, 2025
esphomellm-esphome-ed450ce9fd6a7380CRITICAL

HP ThinPro 8.1 SP7 Security Updates

Jun 3, 2025
microsoft2023-Feb/CVE-2023-25193Important

hb-ot-layout-gsubgpos.hh in HarfBuzz through 6.0.0 allows attackers to trigger O(n^2) growth via consecutive marks during the process of looking back for base glyphs when attaching marks.

Feb 14, 2023
redhatCVE-2023-25193Moderate

harfbuzz: allows attackers to trigger O(n^2) growth via consecutive marks

Feb 4, 2023

References

chromium.googlesource.com / chromium/src/+/e1f324aa681af54101c1f2d173d92adb80e37088/DEPS
PatchThird Party Advisory
github.com / harfbuzz/harfbuzz/blob/2822b589bc837fae6f66233e2cf2eef0f6ce8470/src/hb-ot-layout-gsubgpos.hh
Third Party Advisory
github.com / harfbuzz/harfbuzz/commit/85be877925ddbf34f74a1229f3ca1716bb6170dc
PatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/KWCHWSICWVZSAXP2YAXM65JC2GR53547
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/YZ5M2GSAIHFPLHYJXUPQ2QDJCLWXUGO3
security.netapp.com / advisory/ntap-20230725-0006