CVE-2017-16921

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

19.90% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 97.3% 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:3.0/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

2017-12-08 15:00Z8 YR AGO

Last updated

2024-08-05 20:35Z2 YR AGO

Reserved

2017-11-21

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.1

Document digest

714a8c99dc0736206c13fb6e76f954d6de2488ed752994d4477623d173481361

• www.otrs.comhttps://www.otrs.com/security-advisory-2017-09-security-update-otrs-framework/x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20171219 [SECURITY] [DLA 1212-1] otrs2 security updatehttps://lists.debian.org/debian-lts-announce/2017/12/msg00015.htmlmailing-listx_refsource_MLIST
• www.exploit-db.com43853https://www.exploit-db.com/exploits/43853/exploitx_refsource_EXPLOIT-DB
• www.debian.orgDSA-4066https://www.debian.org/security/2017/dsa-4066vendor-advisoryx_refsource_DEBIAN
• packetstormsecurity.comhttp://packetstormsecurity.com/files/162295/OTRS-6.0.1-Remote-Command-Execution.htmlx_refsource_MISC