CVE-2024-6782
CriticalExploitedPublic exploitImproper access control in Calibre 6.9.0 ~ 7.14.0 allow unauthenticated attackers to achieve remote code execution.
Published Aug 6, 2024 · Updated Oct 8, 2026 · Also known as DEBIAN-CVE-2024-6782, UBUNTU-CVE-2024-6782
Key Facts
Patch immediately- CVE-2024-6782 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Calibre (debian).
- It is exploited in the wild, listed in Industry KEV feed since Jan 20, 2026. Public exploit code is available.
- EPSS estimates a 84% probability of exploitation in the next 30 days.
- Fixed versions are available, including Calibre 6.13.0+repack-2+deb12u4, Calibre 7.16.0+ds-1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
84%
Higher than 99.6% of all scored CVEs
Exploited in the wild
Yes
1 catalog listing
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2024-6782 brief as a PDF
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Description
Improper access control in Calibre 6.9.0 ~ 7.14.0 allow unauthenticated attackers to achieve remote code execution.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Jan 20, 2026 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
17 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Calibredebian | >= 6.9.0 | 6.13.0+repack-2+deb12u4 |
Patched Releases
Calibre
6.13.0+repack-2+deb12u4, 7.16.0+ds-1
Timeline
Publicly disclosed
Aug 6, 2024
Added to Industry KEV feed
Jan 20, 2026
Last updated
Oct 8, 2026
Weakness Type
- CWE-863 Incorrect Authorization
References
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2024/6xxx/CVE-2024-6782.json
- advisoryhttps://github.com/kovidgoyal/calibre/commit/38a1bf50d8cd22052ae59c513816706c6445d5e9
- advisoryhttps://github.com/kovidgoyal/calibre/commit/863abac24e7bc3e5ca0b3307362ff1953ba53fe0
- advisoryhttps://github.com/kovidgoyal/calibre/commit/bcd0ab12c41a887f8290a9b56e46c3a29038d9c4
- advisoryhttps://github.com/kovidgoyal/calibre/commit/d56574285e8859d3d715eb7829784ee74337b7d7
FAQ
Common Questions.
Improper access control in Calibre 6.9.0 ~ 7.14.0 allow unauthenticated attackers to achieve remote code execution.
Affected: Calibre (debian) versions >= 6.9.0. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Jan 20, 2026.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Calibre 6.13.0+repack-2+deb12u4, Calibre 7.16.0+ds-1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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