PT-2026-27312 · Libcurl+1 · Libcurl+1

Titan Team · CVE-2026-4734 · Published 2026-03-24 · Updated 2026-04-30

Positive Technologies (AI Summary)

CVSS v4.0

9.4

Critical

Base vector

AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/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:N/AU:Y/R:U/V:D/RE:L/U:Clear

Name of the Vulnerable Software and Affected Versions yoyofr modizer versions prior to 4.3

Description A memory buffer issue exists within the modizer software, specifically in the libcurl IMAP handler. This issue allows for operations outside the intended memory boundaries. The vulnerability is network-exploitable and has a high severity. The affected files include imap.C.

Recommendations Update to version 4.3 or later.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2026-4734

Affected Products

Libcurl

Yoyofr Modizer

References · 8

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4734.json · Exploit
• https://github.com/yoyofr/modizer/pull/141 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-4734 · Security Note
• https://osv.dev/vulnerability/CVE-2026-4734 · Vendor Advisory
• https://github.com/yoyofr/modizer · Note
• https://t.me/cveNotify/161576 · Telegram Post
• https://twitter.com/0dayPublishing/status/2036286708069613717 · Twitter Post
• https://twitter.com/CVEarity/status/2036847799762117065 · Twitter Post