CVE-2021-26699

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

2.00% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 79.0% of scored records. A rank, not a probability.

NVD base score

5.4 (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:L/I:N/A:L

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

2021-07-22 16:22Z5 YR AGO

Last updated

2024-08-03 20:33Z2 YR AGO

Reserved

2021-02-04

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-918Server-Side Request Forgery (SSRF)Base

Data version

5.1

Document digest

b35983c9a99302fb62fe70b15bcae23f47cd3d4d79fa19949b04fee26a2e4a10

• www.open-xchange.comhttps://www.open-xchange.comx_refsource_MISC
• seclists.org20210716 Open-Xchange Security Advisory 2021-07-15http://seclists.org/fulldisclosure/2021/Jul/33mailing-listx_refsource_FULLDISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/163527/OX-App-Suite-OX-Guard-OX-Documents-SSRF-Cross-Site-Scripting.htmlx_refsource_MISC
• seclists.orghttps://seclists.org/fulldisclosure/2021/Jul/33x_refsource_CONFIRM