CVE-2018-6644

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

1.91% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 78.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

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

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2018-02-08 23:00Z8 YR AGO

Last updated

2024-08-05 06:10Z2 YR AGO

Reserved

2018-02-05

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase
• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.1

Document digest

cd0f3b5eae1956d747a8ccaaa92e2e07a7b3254a2c604146e74c93607b11e238

• www.openwall.com[oss-security] 20180207 Fwe: [scr459004] sfcb - 1.4.9http://www.openwall.com/lists/oss-security/2018/02/07/1mailing-listx_refsource_MLIST
• www.securityfocus.com103041http://www.securityfocus.com/bid/103041vdb-entryx_refsource_BID