CVE-2021-31718

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.96% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 58.9% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-04-25 18:35Z5 YR AGO

Last updated

2024-08-03 23:03Z2 YR AGO

Reserved

2021-04-23

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-346Origin Validation ErrorClass

Data version

5.1

Document digest

ede5c90fd324e754dc3dd8cb79598d02833394c9188fc1a96cf6232ea39b49ff

• framagit.orghttps://framagit.org/medoc92/npupnpx_refsource_MISC
• www.lesbonscomptes.comhttps://www.lesbonscomptes.com/upmpdcli/npupnp-doc/libnpupnp.htmlx_refsource_MISC
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2021/04/25/2x_refsource_MISC