CVE-2026-26825
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
A use-of-uninitialized memory vulnerability exists in libxls 1.6.3 when parsing malformed XLS files. The issue is reachable via xls_parseWorkBook() and is triggered by uninitialized heap memory originating from the OLE layer (ole2_read). The flaw is detectable with MemorySanitizer (MSAN) and can lead to undefined behavior, incorrect parsing logic, or potential information disclosure.
| Vendor | n/a |
| Product | n/a |
| Published | Jun 3, 2026 |
| Last Updated | Jun 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for n/a n/a
Be the first to know when new medium vulnerabilities affecting n/a n/a are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
n/a / n/a
n/a