CVE-2019-20838

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.77% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 86.0% 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:3.1/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 2026-10-08.

Red Hat severity

Low. 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

2020-06-15 16:50Z6 YR AGO

Last updated

2026-10-08 21:13Z20 DAYS AGO

Reserved

2020-06-15

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

39e0cc2ad29c03bf78ba7971dbe9d17a9482f3de0610f3cc3f5915b331a1d5f8

• bugs.gentoo.orghttps://bugs.gentoo.org/717920x_refsource_MISC
• www.pcre.orghttps://www.pcre.org/original/changelog.txtx_refsource_MISC
• support.apple.comhttps://support.apple.com/kb/HT211931x_refsource_CONFIRM
• seclists.org20201215 APPLE-SA-2020-12-14-4 Additional information for APPLE-SA-2020-11-13-1 macOS Big Sur 11.0.1http://seclists.org/fulldisclosure/2020/Dec/32mailing-listx_refsource_FULLDISC
• support.apple.comhttps://support.apple.com/kb/HT212147x_refsource_CONFIRM
• seclists.org20210201 APPLE-SA-2021-02-01-1 macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojavehttp://seclists.org/fulldisclosure/2021/Feb/14mailing-listx_refsource_FULLDISC
• lists.apache.org[mina-dev] 20210225 [jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jarhttps://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3Emailing-listx_refsource_MLIST