CVE-2025-47220: A local file enumeration was found in Keyfactor SignServer versions prior to 7.3.2 .The property VISIBLE_SIGNA

Q: How do I fix CVE-2025-47220?

signserver: upgrade to 7.3.1. Exact commands for each OS are on this page.

Q: Is CVE-2025-47220 being exploited?

CVE-2025-47220 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-2025-47220 affect?

CVE-2025-47220 affects signserver. Severity is medium (CVSS 5.3). A local file enumeration was found in Keyfactor SignServer versions prior to 7.3.2 .The property VISIBLE_SIGNATURE_CUSTOM_IMAGE_PATH, which exists in the PDFSigner and the PAdESSigner, can be set to any path without any restrictions by an a

Q: How urgent is CVE-2025-47220?

Priority 29/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2025-47220 is a medium-severity flaw (CVSS 5.3) affecting signserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A local file enumeration was found in Keyfactor SignServer versions prior to 7.3.2 .The property VISIBLE_SIGNATURE_CUSTOM_IMAGE_PATH, which exists in the PDFSigner and the PAdESSigner, can be set to any path without any restrictions by an admin user. In the case that the provided path points to an existing file, readable by the user running the application server, but is not a recognized image format, it will return this as an error to the client

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-284
Published	2025-11-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: keyfactor

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

Am I affected?

Timeline

2025-11-13 21:15 UTCPublished CVE record published
2026-06-17 09:27 UTCUpdated Record last modified

keyfactor signserver UPGRADE

Affected: < 7.3.1

Fixed in: 7.3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 7.3.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade signserver

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-2025-47220?

signserver: upgrade to 7.3.1. Exact commands for each OS are on this page.

Is CVE-2025-47220 being exploited?

CVE-2025-47220 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-2025-47220 affect?

CVE-2025-47220 affects signserver. Severity is medium (CVSS 5.3). A local file enumeration was found in Keyfactor SignServer versions prior to 7.3.2 .The property VISIBLE_SIGNATURE_CUSTOM_IMAGE_PATH, which exists in the PDFSigner and the PAdESSigner, can be set to any path without any restrictions by an a

How urgent is CVE-2025-47220?

Priority 29/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-47222 MEDIUM 6.5 UPGRADE A class name enumeration was found in Keyfactor SignServer versions prior to 7.3.2
CVE-2025-47221 MEDIUM 5.3 UPGRADE An arbitrary file write was found in Keyfactor SignServer versions prior to 7.3.2
CVE-2025-26787 MEDIUM 4.7 UPGRADE An error in the SignServer container startup logic was found in Keyfactor SignServer versions prior to 7.2

References

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