CVE-2025-6648: PDF-XChange Editor U3D File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

Routine

LOW 3.3DOWNGRADEDOWNGRADE

CVE-2025-6648 is a low-severity flaw (CVSS 3.3) affecting pdf-tools, pdf-xchange editor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PDF-XChange Editor U3D File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of U3D files. The issue results from the lack of prope

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	3.3 (Low)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-125
Published	2025-06-25
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: pdf-xchange

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

Am I affected?

Timeline

2025-06-25 22:15 UTCPublished CVE record published
2026-06-17 10:02 UTCUpdated Record last modified

pdf-xchange pdf-tools DOWNGRADE

Affected: 10.5.2.395

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.5.2.395

1. Check installed version

apt-cache policy pdf-tools || rpm -q pdf-tools || pdf-tools --version

2. No fixed release: DOWNGRADE to a release before 10.5.2.395 (Debian / Ubuntu)

apt-cache madison pdf-tools sudo apt install pdf-tools=<VERSION_BEFORE_10.5.2.395> sudo apt-mark hold pdf-tools

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list pdf-tools sudo dnf downgrade pdf-tools-<VERSION_BEFORE_10.5.2.395> sudo dnf versionlock add pdf-tools

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

pdf-xchange pdf-xchange editor DOWNGRADE

Affected: 10.5.2.395

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.5.2.395

1. Check installed version

apt-cache policy pdf-xchange-editor || rpm -q pdf-xchange-editor || pdf-xchange-editor --version

2. No fixed release: DOWNGRADE to a release before 10.5.2.395 (Debian / Ubuntu)

apt-cache madison pdf-xchange-editor sudo apt install pdf-xchange-editor=<VERSION_BEFORE_10.5.2.395> sudo apt-mark hold pdf-xchange-editor

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list pdf-xchange-editor sudo dnf downgrade pdf-xchange-editor-<VERSION_BEFORE_10.5.2.395> sudo dnf versionlock add pdf-xchange-editor

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2025-6648?

pdf-tools: downgrade or apply the listed mitigation; pdf-xchange editor: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-6648 being exploited?

CVE-2025-6648 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-2025-6648 affect?

CVE-2025-6648 affects pdf-tools, pdf-xchange editor. Severity is low (CVSS 3.3). PDF-XChange Editor U3D File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is r

How urgent is CVE-2025-6648?

Priority 15/100. No elevated risk signals yet.

Related CVEs

CVE-2025-6662 LOW 3.3 DOWNGRADE DOWNGRADE PDF-XChange Editor PRC File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
CVE-2025-6661 HIGH 7.8 DOWNGRADE DOWNGRADE PDF-XChange Editor App Object Use-After-Free Remote Code Execution Vulnerability
CVE-2025-6660 HIGH 7.8 DOWNGRADE DOWNGRADE PDF-XChange Editor GIF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2025-6659 HIGH 7.8 DOWNGRADE DOWNGRADE PDF-XChange Editor PRC File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
CVE-2025-6658 LOW 3.3 DOWNGRADE DOWNGRADE PDF-XChange Editor PRC File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

References

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