CVE-2022-29536

Name: CVE-2022-29536
Creator: NVD / NIST
Published: 2022-04-20T23:15:08.733+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.90%

Last modified Jun 17, 2026

CVE-2022-29536 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In GNOME Epiphany before 41.4 and 42.x before 42.2, an HTML document can trigger a client buffer overflow (in ephy_string_shorten in the UI process) via a long page title. The issue occurs because the number of bytes for a UTF-8 ellipsis character is not properly considered.. EPSS estimates a 1.90% chance of exploitation in the next 30 days.

Description

In GNOME Epiphany before 41.4 and 42.x before 42.2, an HTML document can trigger a client buffer overflow (in ephy_string_shorten in the UI process) via a long page title. The issue occurs because the number of bytes for a UTF-8 ellipsis character is not properly considered.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.90%

77.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Gnome	Epiphany	< 41.4
Gnome	Epiphany	>= 42.0, < 42.2
Fedoraproject	Fedora	34
Fedoraproject	Fedora	35
Fedoraproject	Fedora	36
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

https://gitlab.gnome.org/GNOME/epiphany/-/merge_requests/1106Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00006.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLLDMY4JYDZTMZSCPSY23K5YW3SQYUR6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7YWVIUGFRA6GOE3QAPSJJ6EL3DJG5NX/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U5K5UPNHVWXDPSMBNSB2645MD2N5CXQS/
https://www.debian.org/security/2022/dsa-5208Third Party Advisory
https://gitlab.gnome.org/GNOME/epiphany/-/merge_requests/1106Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/08/msg00006.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLLDMY4JYDZTMZSCPSY23K5YW3SQYUR6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7YWVIUGFRA6GOE3QAPSJJ6EL3DJG5NX/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U5K5UPNHVWXDPSMBNSB2645MD2N5CXQS/
https://www.debian.org/security/2022/dsa-5208Third Party Advisory

Timeline

Published: Apr 20, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-29536?

How severe is CVE-2022-29536?

CVE-2022-29536 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.90% probability of exploitation in the next 30 days.

How do I fix CVE-2022-29536?

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-2022-29536?

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

Scan your code now

Source: NVD / NIST