How severe is CVE-2017-11626?

CVE-2017-11626 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-11626 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11626?

CVE-2017-11626 affects Qpdf Project Qpdf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-11626?

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

When was CVE-2017-11626 published?

CVE-2017-11626 was published on 2017-07-25 and last updated on 2026-06-17.

CVE-2017-11626

CVE-2017-11626 is a medium-severity vulnerability in Qpdf Project Qpdf with a CVSS 3.x base score of 5.5. 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-835.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-835
Affected product: Qpdf Project Qpdf
Published: 2017-07-25
Last modified: 2026-06-17

Description

A stack-consumption vulnerability was found in libqpdf in QPDF 6.0.0, which allows attackers to cause a denial of service via a crafted file, related to the QPDFTokenizer::resolveLiteral function in QPDFTokenizer.cc after four consecutive calls to QPDFObjectHandle::parseInternal, aka an "infinite loop."

Frequently asked questions

What is CVE-2017-11626?: A stack-consumption vulnerability was found in libqpdf in QPDF 6.0.0, which allows attackers to cause a denial of service via a crafted file, related to the QPDFTokenizer::resolveLiteral function in QPDFTokenizer.cc after four consecutive calls to QPDFObjectHandle::parseInternal, aka an "infinite loop."
How severe is CVE-2017-11626?: CVE-2017-11626 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-11626 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11626?: CVE-2017-11626 affects Qpdf Project Qpdf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-11626?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-11626 published?: CVE-2017-11626 was published on 2017-07-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:qpdf_project:qpdf:6.0.0:*:*:*:*:*:*:*

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