CVE-2021-23165
CVSS v3
9.8
CRITICAL
EPSS Score
3.5 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A flaw was found in htmldoc before v1.9.12. Heap buffer overflow in pspdf_prepare_outpages(), in ps-pdf.cxx may lead to execute arbitrary code and denial of service.
Technical details
- Published
- 2022-03-16
Frequently asked questions
What is CVE-2021-23165?
A flaw was found in htmldoc before v1.9.12. Heap buffer overflow in pspdf_prepare_outpages(), in ps-pdf.cxx may lead to execute arbitrary code and denial of service.
Is CVE-2021-23165 actively exploited?
Active exploitation of CVE-2021-23165 has not been confirmed. Its EPSS score was 3.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-23165?
CVE-2021-23165 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2021-23165 affecting your environment?
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