CVE Explorer

CVE-2026-25635

calibre is an e-book manager. Prior to 9.2.0, Calibre's CHM reader contains a path traversal vulnerability that allows arbitrary file writes anywhere the user has write permissions. On Windows (haven't tested on other OS's), this can lead to Remote Code Execution by writing a payload to the Startup folder, which executes on next login. This vulnerability is fixed in 9.2.0.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:26eb4ab0588767d4e3704fdc4b16c897a749a8df9c87d30779a6a7800b1780b0

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"calibre","vendor":"kovidgoyal","versions":[{"status":"affected","version":"< 9.2.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:e3c4486168e3753d5fd51692f012eb6b5394f1cd4fb102c45ed23cddb5d858ec · sha256:d53827b95f1dbfe1… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:e3c4486168e3753d5fd51692f012eb6b5394f1cd4fb102c45ed23cddb5d858ec · sha256:d53827b95f1dbfe1… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:e3c4486168e3753d5fd51692f012eb6b5394f1cd4fb102c45ed23cddb5d858ec · sha256:d53827b95f1dbfe1… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions

{"url":"https://0x5t.raptx.org/posts/calibre-chm-rce"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e3c4486168e3753d5fd51692f012eb6b5394f1cd4fb102c45ed23cddb5d858ec · sha256:d53827b95f1dbfe1… · /containers/adp/1/references/0

{"name":"https://github.com/kovidgoyal/calibre/commit/9739232fcb029ac15dfe52ccd4fdb4a07ebb6ce9","tags":["x_refsource_MISC"],"url":"https://github.com/kovidgoyal/calibre/commit/9739232fcb029ac15dfe52ccd4fdb4a07ebb6ce9"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e3c4486168e3753d5fd51692f012eb6b5394f1cd4fb102c45ed23cddb5d858ec · sha256:d53827b95f1dbfe1… · /containers/cna/references/1

{"name":"https://github.com/kovidgoyal/calibre/security/advisories/GHSA-32vh-whvh-9fxr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/kovidgoyal/calibre/security/advisories/GHSA-32vh-whvh-9fxr"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:e3c4486168e3753d5fd51692f012eb6b5394f1cd4fb102c45ed23cddb5d858ec · sha256:d53827b95f1dbfe1… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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