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Vulnerability details: VCID-mqmp-g7uy-gbg4
Vulnerability ID VCID-mqmp-g7uy-gbg4
Aliases CVE-2026-30853
Summary calibre: Calibre: Arbitrary file write via crafted RocketBook (.rb) file
Status Published
Exploitability 0.5
Weighted Severity 4.5
Risk 2.2
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
System Score Found at
cvssv3 5.0 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-30853.json
epss 0.00013 https://api.first.org/data/v1/epss?cve=CVE-2026-30853
epss 0.00013 https://api.first.org/data/v1/epss?cve=CVE-2026-30853
epss 0.00013 https://api.first.org/data/v1/epss?cve=CVE-2026-30853
epss 0.00013 https://api.first.org/data/v1/epss?cve=CVE-2026-30853
epss 0.00013 https://api.first.org/data/v1/epss?cve=CVE-2026-30853
epss 0.00013 https://api.first.org/data/v1/epss?cve=CVE-2026-30853
epss 0.00013 https://api.first.org/data/v1/epss?cve=CVE-2026-30853
cvssv3.1 5 https://github.com/kovidgoyal/calibre/security/advisories/GHSA-7mp7-rfrg-542x
ssvc Track https://github.com/kovidgoyal/calibre/security/advisories/GHSA-7mp7-rfrg-542x
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-30853.json
https://api.first.org/data/v1/epss?cve=CVE-2026-30853
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-30853
2447437 https://bugzilla.redhat.com/show_bug.cgi?id=2447437
GHSA-7mp7-rfrg-542x https://github.com/kovidgoyal/calibre/security/advisories/GHSA-7mp7-rfrg-542x
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-30853.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:L Found at https://github.com/kovidgoyal/calibre/security/advisories/GHSA-7mp7-rfrg-542x
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-13T19:42:19Z/ Found at https://github.com/kovidgoyal/calibre/security/advisories/GHSA-7mp7-rfrg-542x
Exploit Prediction Scoring System (EPSS)
Percentile 0.0217
EPSS Score 0.00013
Published At April 11, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:30:30.213561+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-30853.json 38.0.0