CVE-2018-18503

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

1.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 71.8% 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: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

2019-02-05 21:00Z7 YR AGO

Last updated

2024-08-05 11:08Z2 YR AGO

Reserved

2018-10-19

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.1

Document digest

8c7969d2e88f8d759f6772aa9198a89fa4671b78d64b445c96c2893d4e776bd0

• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2019-01/x_refsource_CONFIRM
• www.securityfocus.com106773http://www.securityfocus.com/bid/106773vdb-entryx_refsource_BID
• usn.ubuntu.comUSN-3874-1https://usn.ubuntu.com/3874-1/vendor-advisoryx_refsource_UBUNTU