CVE-2021-27836 is a denial-of-service vulnerability in libxls 1.6.2, specifically within the xls_getWorkSheet function in xls.c, affecting products like Fedora and libxls_project. An unauthenticated attacker can trigger this by tricking a user into opening a specially crafted XLS file, leading to a high impact on availability. While rated Medium severity (CVSS 6.5), there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.6.2CPE matchmatch criteria | cpe:2.3:a:libxls_project:libxls:1.6.2:-:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.