How severe is CVE-2018-11033?

CVE-2018-11033 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-2018-11033 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11033?

CVE-2018-11033 affects Xpdfreader Xpdf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11033?

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-2018-11033 published?

CVE-2018-11033 was published on 2018-05-14 and last updated on 2026-06-17.

CVE-2018-11033

CVE-2018-11033 is a high-severity vulnerability in Xpdfreader Xpdf 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Xpdfreader Xpdf
Published: 2018-05-14
Last modified: 2026-06-17

Description

The DCTStream::readHuffSym function in Stream.cc in the DCT decoder in xpdf before 4.00 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted JPEG data.

Frequently asked questions

What is CVE-2018-11033?: The DCTStream::readHuffSym function in Stream.cc in the DCT decoder in xpdf before 4.00 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted JPEG data.
How severe is CVE-2018-11033?: CVE-2018-11033 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-2018-11033 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11033?: CVE-2018-11033 affects Xpdfreader Xpdf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11033?: 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-2018-11033 published?: CVE-2018-11033 was published on 2018-05-14 and last updated on 2026-06-17.

References

https://forum.xpdfreader.com/viewtopic.php?f=3&t=40842

Affected products (1)

cpe:2.3:a:xpdfreader:xpdf:4.00:*:*:*:*:*:*:*

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