How severe is CVE-2018-11128?

CVE-2018-11128 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-11128 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11128?

CVE-2018-11128 affects Pdfparser. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11128?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-11128 published?

CVE-2018-11128 was published on 2018-05-17 and last updated on 2026-06-17.

CVE-2018-11128

CVE-2018-11128 is a high-severity vulnerability in Pdfparser with a CVSS 3.x base score of 7.8. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Pdfparser
Published: 2018-05-17
Last modified: 2026-06-17

Description

The ObjReader::ReadObj() function in ObjReader.cpp in vincent0629 PDFParser allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly execute arbitrary code via a crafted pdf file.

Frequently asked questions

What is CVE-2018-11128?: The ObjReader::ReadObj() function in ObjReader.cpp in vincent0629 PDFParser allows remote attackers to cause a denial of service (stack-based buffer overflow) or possibly execute arbitrary code via a crafted pdf file.
How severe is CVE-2018-11128?: CVE-2018-11128 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-11128 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11128?: CVE-2018-11128 affects Pdfparser. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11128?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-11128 published?: CVE-2018-11128 was published on 2018-05-17 and last updated on 2026-06-17.

References

http://seclists.org/fulldisclosure/2018/May/44

Affected products (1)

cpe:2.3:a:pdfparser:pdfparser:*:*:*:*:*:*:*:*

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