What is CVE-2021-27845?

CVE-2021-27845 is a medium-severity vulnerability in Jasper Project, classified under Divide By Zero. CVSS score: 5.5/10. Published 2021-07-15.

How severe is CVE-2021-27845?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Jasper Project

CVE-2021-27845

A Divide-by-zero vulnerability exists in JasPer Image Coding Toolkit 2.0 in jasper/src/libjasper/jpc/jpc_enc.c

Published 2021-07-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (49.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Jasper Project

Weakness classification (CWE)

CWE-369 — Divide By Zero

References

github.com/jasper-software/jasper/issues/194 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-27845?: CVE-2021-27845 is a medium-severity vulnerability in Jasper Project, classified under Divide By Zero. CVSS score: 5.5/10. Published 2021-07-15.
How severe is CVE-2021-27845?: Medium severity. CVSS v3 base score is 5.5 out of 10.