Technology · Libxls
Libxls vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 4 vulnerabilities in Libxls: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-79592, was published on 10 September 2026. Nothing was published in the last eight weeks.
- Last 7 days
- 0
- Last 90 days
- 2
- Critical, all time
- 0
- Exploited in the wild
- 0
About Libxls
A C library which can read Excel (xls) files in the old binary OLE format.
Latest Libxls vulnerabilities
- CVE-2026-79592: libxls out-of-bounds read in xls_dumpSummaryhighCVSS 7.5EPSS 0.4%
- CVE-2026-79591: libxls heap-buffer-overflow and use-after-free in xls_getCSShighCVSS 7.8EPSS 0.2%
- CVE-2026-26825: libxls use-of-uninitialized memory in xls_parseWorkBookinfo
- CVE-2026-26824: libxls use of uninitialized memory in OLE container parserinfoCVSS 0
Most severe Libxls vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-79591: libxls heap-buffer-overflow and use-after-free in xls_getCSShighCVSS 7.8EPSS 0.2%
- CVE-2026-79592: libxls out-of-bounds read in xls_dumpSummaryhighCVSS 7.5EPSS 0.4%
- CVE-2026-26824: libxls use of uninitialized memory in OLE container parserinfoCVSS 0
- CVE-2026-26825: libxls use-of-uninitialized memory in xls_parseWorkBookinfo
Vulnerabilities per week
Nothing was published in the last eight weeks. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 2 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Libxls vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/libxls)<a href="https://junglewise.ai/threats/technologies/libxls"><img src="https://junglewise.ai/threats/technologies/libxls/badge.svg" alt="Libxls vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/libxls.json, and this page as text at https://junglewise.ai/threats/technologies/libxls.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Libxls vulnerabilities", https://junglewise.ai/threats/technologies/libxls, 9 November 2026.