CVE-2018-20450
CVE-2018-20450 is a medium-severity vulnerability in Libxls Project Libxls 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-415.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (61st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-415
- Affected product: Libxls Project Libxls
- Published:
- Last modified:
Description
The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.
Frequently asked questions
- What is CVE-2018-20450?
- The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.
- How severe is CVE-2018-20450?
- CVE-2018-20450 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-2018-20450 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-20450?
- CVE-2018-20450 affects Libxls Project Libxls. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-20450?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-20450 published?
- CVE-2018-20450 was published on 2018-12-25 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:libxls_project:libxls:1.4.0:*:*:*:*:*:*:*
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