What is CVE-2021-35502?

CVE-2021-35502 is a critical-severity vulnerability in Misp. CVSS score: 9.8/10. Published 2021-06-25.

How severe is CVE-2021-35502?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Misp

CVE-2021-35502

app/View/Elements/genericElements/IndexTable/Fields/generic_field.ctp in MISP 2.4.144 does not sanitize certain data related to generic-template:index.

Published 2021-06-25 · last modified 2026-06-22.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (64.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Misp — versions 2.4.144
Misp-Project Misp — versions 2.4.144

References

github.com/MISP/MISP/commit/2fde6476dc3173affc61874ba2adb35400a8fda5 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-35502?: CVE-2021-35502 is a critical-severity vulnerability in Misp. CVSS score: 9.8/10. Published 2021-06-25.
How severe is CVE-2021-35502?: Critical severity. CVSS v3 base score is 9.8 out of 10.