CVE-2026-3664 is an out-of-bounds read vulnerability affecting the Encrypted XLSX File Parser component (specifically the xlnt::detail::compound_document::read_directory function) in xlnt-community xlnt versions up to 1.6.1. This low-severity vulnerability (CVSS 3.3) requires local access and can lead to a denial of service, with no impact on confidentiality or integrity. While a public exploit has been disclosed, there is no evidence of active exploitation, and it has received minimal community or media attention. Organizations are advised to apply patch 147 to mitigate this issue.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 1.6.1CPE matchmatch criteria | cpe:2.3:a:xlnt-community:xlnt:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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.