CVE-2022-33068

Name: CVE-2022-33068
Creator: NVD / NIST
Published: 2022-06-23T17:15:14.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 1.13%

Last modified Jun 17, 2026

CVE-2022-33068 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An integer overflow in the component hb-ot-shape-fallback.cc of Harfbuzz v4.3.0 allows attackers to cause a Denial of Service (DoS) via unspecified vectors.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

An integer overflow in the component hb-ot-shape-fallback.cc of Harfbuzz v4.3.0 allows attackers to cause a Denial of Service (DoS) via unspecified vectors.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

1.13%

62.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Harfbuzz Project	Harfbuzz	4.3.0
Fedoraproject	Fedora	35
Fedoraproject	Fedora	36

References

https://github.com/harfbuzz/harfbuzz/commit/62e803b36173fd096d7ad460dd1d1db9be542593Patch, Third Party Advisory
https://github.com/harfbuzz/harfbuzz/issues/3557Exploit, Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FQBJ24W6TXLSAQWCFW7IBGUMX4AJI3S4/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QQMEXOVDL3T2UXKBCON7JSOCE646G7HG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W56WTC5IY4EIUHVUIHMCXA3BSBZLSZCI/
https://security.gentoo.org/glsa/202209-11Third Party Advisory
https://github.com/harfbuzz/harfbuzz/commit/62e803b36173fd096d7ad460dd1d1db9be542593Patch, Third Party Advisory
https://github.com/harfbuzz/harfbuzz/issues/3557Exploit, Issue Tracking, Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FQBJ24W6TXLSAQWCFW7IBGUMX4AJI3S4/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QQMEXOVDL3T2UXKBCON7JSOCE646G7HG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W56WTC5IY4EIUHVUIHMCXA3BSBZLSZCI/
https://security.gentoo.org/glsa/202209-11Third Party Advisory

Timeline

Published: Jun 23, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-33068?

An integer overflow in the component hb-ot-shape-fallback.cc of Harfbuzz v4.3.0 allows attackers to cause a Denial of Service (DoS) via unspecified vectors.

How severe is CVE-2022-33068?

CVE-2022-33068 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2022-33068?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-33068?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST