How severe is CVE-2018-14946?

CVE-2018-14946 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-14946 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14946?

CVE-2018-14946 affects Flowpaper Pdf2json. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-14946?

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-2018-14946 published?

CVE-2018-14946 was published on 2018-08-05 and last updated on 2026-06-17.

CVE-2018-14946

CVE-2018-14946 is a high-severity vulnerability in Flowpaper Pdf2json with a CVSS 3.x base score of 8.8. 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 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Flowpaper Pdf2json
Published: 2018-08-05
Last modified: 2026-06-17

Description

An issue has been found in PDF2JSON 0.69. The HtmlString class in ImgOutputDev.cc has Mismatched Memory Management Routines (malloc versus operator delete).

Frequently asked questions

What is CVE-2018-14946?: An issue has been found in PDF2JSON 0.69. The HtmlString class in ImgOutputDev.cc has Mismatched Memory Management Routines (malloc versus operator delete).
How severe is CVE-2018-14946?: CVE-2018-14946 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-14946 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14946?: CVE-2018-14946 affects Flowpaper Pdf2json. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-14946?: 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-2018-14946 published?: CVE-2018-14946 was published on 2018-08-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:flowpaper:pdf2json:0.69:*:*:*:*:*:*:*

More vulnerabilities in Flowpaper Pdf2json

CVE-2020-23878 — Critical (CVSS 9.8): pdf2json v0.71 was discovered to contain a stack buffer overflow in the component XRef::fetch.
CVE-2018-14947 — High (CVSS 8.8): An issue has been found in PDF2JSON 0.69. XmlFontAccu::CSStyle in XmlFonts.cc has Mismatched Memory Management Routines…
CVE-2020-18750 — High (CVSS 7.8): Buffer overflow in pdf2json 0.69 allows local users to execute arbitrary code by converting a crafted PDF file.
CVE-2020-23879 — High (CVSS 7.5): pdf2json v0.71 was discovered to contain a NULL pointer dereference in the component ObjectStream::getObject.
CVE-2020-19475 — Medium (CVSS 5.5): An issue has been found in function CCITTFaxStream::lookChar in PDF2JSON 0.70 that allows attackers to cause a Denial…
CVE-2020-19474 — Medium (CVSS 5.5): An issue has been found in function Gfx::doShowText in PDF2JSON 0.70 that allows attackers to cause a Denial of Service…

All CVEs affecting Flowpaper Pdf2json →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

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CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
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CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →