How severe is CVE-2018-25306?

CVE-2018-25306 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-25306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-25306?

CVE-2018-25306 affects Canonical Pdfunite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-25306?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2018-25306 have an EU (EUVD) identifier?

Yes. CVE-2018-25306 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-21827.

When was CVE-2018-25306 published?

CVE-2018-25306 was published on 2026-04-29 and last updated on 2026-06-17.

CVE-2018-25306

CVE-2018-25306 is a medium-severity vulnerability in Canonical Pdfunite with a CVSS 3.x base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
CVSS v4: 6.9
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2018-21827
Weakness: CWE-120
Affected product: Canonical Pdfunite
Published: 2026-04-29
Last modified: 2026-06-17

Description

PDFunite 0.41.0 contains a buffer overflow vulnerability that allows local attackers to crash the application by processing malformed PDF files during merge operations. Attackers can trigger a segmentation fault in the XRef::getEntry function within libpoppler by providing a specially crafted PDF file to the pdfunite utility.

Frequently asked questions

What is CVE-2018-25306?: PDFunite 0.41.0 contains a buffer overflow vulnerability that allows local attackers to crash the application by processing malformed PDF files during merge operations. Attackers can trigger a segmentation fault in the XRef::getEntry function within libpoppler by providing a specially crafted PDF file to the pdfunite utility.
How severe is CVE-2018-25306?: CVE-2018-25306 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-25306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-25306?: CVE-2018-25306 affects Canonical Pdfunite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-25306?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2018-25306 have an EU (EUVD) identifier?: Yes. CVE-2018-25306 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2018-21827.
When was CVE-2018-25306 published?: CVE-2018-25306 was published on 2026-04-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:canonical:pdfunite:0.41.0:*:*:*:*:*:*:*

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