CVE-2026-29078 identifies an integer underflow vulnerability in the ISO-2022-JP encoder of the Lexbor web browser engine library, affecting versions prior to 2.7.0. This flaw can lead to out-of-bounds read and write operations due to a temporary size variable not being properly reset. Rated 7.5 HIGH, the vulnerability has a network attack vector with low complexity and requires no user interaction or privileges, primarily posing a high risk to system availability. There is currently no evidence of active exploitation, nor are there any public exploit modules or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.7.0CPE matchmatch criteria | cpe:2.3:a:lexbor:lexbor:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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.
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 records are not available for this CVE.