CVE-2024-6781 | Calibre Arbitrary File Read

Path traversal in Calibre <= 7.14.0 allow unauthenticated attackers to achieve arbitrary file read.

Published: 2024-08-06 Last update: 2024-08-19 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-6781 is rated Moderate Risk (64.9/100): CVSS High severity, with high exploitation likelihood (EPSS 93.72%, 100th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-6781

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-10 93.77% 93.72% -0.05%
2 2026-04-01 93.70% 93.77% +0.06%
3 2026-03-21 — 93.70% —

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-6781

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2024-6781

OS Trackers for CVE-2024-6781

vendor priority summary link
debian unimportant CVE-2024-6781 unimportant priority: Debian including 1 source packages (calibre), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-6781
gentoo high CVE-2024-6781: 1 GLSA(s) (202409-04), 1 atom(s) (app-text/calibre); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2024-6781
ubuntu medium CVE-2024-6781 medium priority: Ubuntu including 1 source packages (calibre), 9 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream, xenial): needs-triage 4, not-affected 3, ignored 1, released 1. https://ubuntu.com/security/CVE-2024-6781

Affected software / configurations for CVE-2024-6781

Vendor Product Version Raw CPE
calibre-ebook calibre <= 7.14.0 cpe:2.3:a:calibre-ebook:calibre:*:*:*:*:*:*:*:*

References for CVE-2024-6781

cvelogic Threat Intelligence