CVE-2025-43265: Qtwebkit opensource src · An out-of-bounds read was addressed with improved input validation
Affects qtwebkit-opensource-srcSource GCVE Database
Not known to be exploited · CVSS 4.0 Medium · fixed in 2.48.5-0ubuntu0.22.04.1 : update qtwebkit-opensource-src when convenient.
Data as of 28 Oct 2026, 22:28 UTC
- Patch
- Available – fixed in 2.48.5-0ubuntu0.22.04.1, 2.48.5-0ubuntu0.24.04.1, 2.48.6-1ubuntu2
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade the Ubuntu webkit2gtk to 2.48.5-0ubuntu0.22.04.1 (package) or 2.48.5-0ubuntu0.24.04.1 (package) or 2.48.6-1ubuntu2 (package).
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSwebkit2gtkpkg:deb/ubuntu/webkit2gtk?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 25.10webkit2gtkpkg:deb/ubuntu/webkit2gtk?arch=source&distro=questingOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSqtwebkit-opensource-srcpkg:deb/ubuntu/qtwebkit-opensource-src?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSwebkit2gtkpkg:deb/ubuntu/webkit2gtk?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 22.04 LTSqtwebkit-opensource-srcpkg:deb/ubuntu/qtwebkit-opensource-src?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSwebkit2gtkpkg:deb/ubuntu/webkit2gtk?arch=source&distro=jammyOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
An out-of-bounds read was addressed with improved input validation. This issue is fixed in Safari 18.6, iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing maliciously crafted web content may disclose internal states of the app.