CVE-2018-20304
CVE-2018-20304 is a medium-severity vulnerability in Libexcel Project Libexcel with a CVSS 3.x base score of 6.5. 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-119.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (54th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Libexcel Project Libexcel
- Published:
- Last modified:
Description
wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV) via a long second argument. NOTE: this is not a Microsoft product.
Frequently asked questions
- What is CVE-2018-20304?
- wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV) via a long second argument. NOTE: this is not a Microsoft product.
- How severe is CVE-2018-20304?
- CVE-2018-20304 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2018-20304 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-20304?
- CVE-2018-20304 affects Libexcel Project Libexcel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-20304?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-20304 published?
- CVE-2018-20304 was published on 2018-12-20 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:libexcel_project:libexcel:0.01:*:*:*:*:*:*:*
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- CVE-2018-20213 — High (CVSS 7.5): wbook_addworksheet in workbook.c in libexcel.a in libexcel 0.01 allows attackers to cause a denial of service (SEGV)…
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