CVE-2021-26551

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

2.61% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 84.0% 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:L/UI:N/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

2021-02-09 19:11Z5 YR AGO

Last updated

2024-08-03 20:26Z2 YR AGO

Reserved

2021-02-01

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-94Improper Control of Generation of Code ('Code Injection')Base

Data version

5.1

Document digest

0d65716a6e2b1853cf0a732a892c5571fea209941e74ab55dfde17b978f69db9

• www.zeroscience.mkhttps://www.zeroscience.mk/en/vulnerabilities/x_refsource_MISC
• www.smartfoxserver.comhttps://www.smartfoxserver.comx_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/161340/SmartFoxServer-2X-2.17.0-Remote-Code-Execution.htmlx_refsource_MISC