CVE-2025-63918: PDFPatcher executable does not validate user-supplied file paths, allowing directory traversal attacks allowin

Q: How do I fix CVE-2025-63918?

pdfpatcher: upgrade to 1.1.3.4663. Exact commands for each OS are on this page.

Q: Is CVE-2025-63918 being exploited?

CVE-2025-63918 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-63918 affect?

CVE-2025-63918 affects pdfpatcher. Severity is medium (CVSS 6.2). PDFPatcher executable does not validate user-supplied file paths, allowing directory traversal attacks allowing attackers to upload arbitrary files to arbitrary locations.

Q: How urgent is CVE-2025-63918?

Priority 36/100. Public exploit reference

Routine

MEDIUM 6.2UPGRADE

CVE-2025-63918 is a medium-severity flaw (CVSS 6.2) affecting pdfpatcher. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PDFPatcher executable does not validate user-supplied file paths, allowing directory traversal attacks allowing attackers to upload arbitrary files to arbitrary locations.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.2 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-22
Published	2025-11-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cnblogs

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-11-17 17:15 UTCPublished CVE record published
2026-06-17 09:53 UTCUpdated Record last modified

cnblogs pdfpatcher UPGRADE

Affected: < 1.1.3.4663

Fixed in: 1.1.3.4663

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pdfpatcher || rpm -q pdfpatcher || pdfpatcher --version

2. UPGRADE to 1.1.3.4663 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pdfpatcher

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pdfpatcher

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-63918?

pdfpatcher: upgrade to 1.1.3.4663. Exact commands for each OS are on this page.

Is CVE-2025-63918 being exploited?

CVE-2025-63918 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-63918 affect?

CVE-2025-63918 affects pdfpatcher. Severity is medium (CVSS 6.2). PDFPatcher executable does not validate user-supplied file paths, allowing directory traversal attacks allowing attackers to upload arbitrary files to arbitrary locations.

How urgent is CVE-2025-63918?

Priority 36/100. Public exploit reference

Related CVEs

CVE-2025-63917 HIGH 7.1 UPGRADE PDFPatcher thru 1.1.3.4663 executable's XML bookmark import functionality does not restrict XML external entit

References

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