CVE-2019-18889

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

33.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 98.2% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/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

2019-11-21 22:21Z6 YR AGO

Last updated

2024-08-05 02:02Z2 YR AGO

Reserved

2019-11-12

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

6dd1a93738b3a6ea230e173c603a3a3ed57afecddbd60c15e7099a776d243728

• symfony.comhttps://symfony.com/blog/symfony-4-3-8-releasedx_refsource_CONFIRM
• github.comhttps://github.com/symfony/symfony/releases/tag/v4.3.8x_refsource_CONFIRM
• symfony.comhttps://symfony.com/blog/cve-2019-18889-forbid-serializing-abstractadapter-and-tagawareadapter-instancesx_refsource_CONFIRM
• lists.fedoraproject.orgFEDORA-2019-8b0ba02338https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UED22BOXTL2SSFMGYKA64ZFHGLLJG3EA/vendor-advisoryx_refsource_FEDORA