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P4Verified
CVE-2026-53525: weechat >= 0.3.4, < 4.9.1
CVE-2026-53525. CVSS 3.1 base score 7.4 (HIGH, Vendor/CNA). EPSS 0.00432 (percentile 0.35633), scored 13-Oct-2026.
Affected technology
weechat · >= 0.3.4, < 4.9.1
weechat
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required
What an attacker can do
An attacker can exploit timing differences to extract the server-computed hash character by character, then authenticate using the correct hash without knowing the password. Vendor/CNA’s CVSS 3.1 assessment (base score 7.4/10) rates confidentiality impact as none; integrity and availability impact as high.
- CWE
- CWE-208
- CCR priority
- 29.7 /100 (P4)
- CVSS 3.1
- 7.4 /10 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H · Vendor/CNA
- EPSS
- 0.00432 · percentile 0.35633 · 2026-10-13
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-15 01:07:31.726917+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-53525.html