CVE-2021-40648

5.5 mediumEPSS 0.3%

Medium (5.5) in man2html project man2html. EPSS 0.3% chance of exploitation in the next 30 days.

In man2html 1.6g, a filename can be created to overwrite the previous size parameter of the next chunk and the fd, bk, fd_nextsize, bk_nextsize of the current chunk. The next chunk is then freed later on, causing a freeing of an arbitrary amount of memory.

Severity

CVSS 3.1

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 27% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2022-09-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

man2html_project:man2html

References

https://gist.github.com/untaman/cb58123fe89fc65e3984165db5d40933
https://gist.github.com/untaman/cb58123fe89fc65e3984165db5d40933

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