CVE-2020-27819
MEDIUM
5.5
CVSS Score
Published: February 23, 2021 at 03:40 AM UTC
Updated: June 17, 2026 at 03:09 AM UTC
2 products affected across 2 vendorsLibxlsProject Libxls
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.8%
Description
An issue was discovered in libxls before and including 1.6.1 when reading Microsoft Excel files. A NULL pointer dereference vulnerability exists when parsing XLS cells in libxls/xls2csv.c:199. It could allow a remote attacker to cause a denial of service via crafted XLS file.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.6.2
Affected range stops below 1.6.2, so it looks safe — our inference, not a vendor statement
v < 1.6.2
Affected range stops below 1.6.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1903296CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-476
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