CVE-2019-19906

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

8.03% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 94.7% 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 2026-10-14.

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

2019-12-19 17:39Z6 YR AGO

Last updated

2026-10-14 07:34Z15 DAYS AGO

Reserved

2019-12-19

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-193Off-by-one ErrorBase
• CWE-787Out-of-bounds WriteBase
• CWE-400Uncontrolled Resource ConsumptionClass

Data version

5.2

Document digest

181170dbf6b75fbfb5018c825fcb7b4ddd5e076598e5c8a201403f6453de66ca

• github.comhttps://github.com/cyrusimap/cyrus-sasl/issues/587x_refsource_MISC
• www.openldap.orghttps://www.openldap.org/its/index.cgi/Incoming?id=9123x_refsource_MISC
• lists.debian.org[debian-lts-announce] 20191220 [SECURITY] [DLA 2044-1] cyrus-sasl2 security updatehttps://lists.debian.org/debian-lts-announce/2019/12/msg00027.htmlmailing-listx_refsource_MLIST
• www.debian.orgDSA-4591https://www.debian.org/security/2019/dsa-4591vendor-advisoryx_refsource_DEBIAN
• seclists.org20191225 [SECURITY] [DSA 4591-1] cyrus-sasl2 security updatehttps://seclists.org/bugtraq/2019/Dec/42mailing-listx_refsource_BUGTRAQ
• usn.ubuntu.comUSN-4256-1https://usn.ubuntu.com/4256-1/vendor-advisoryx_refsource_UBUNTU
• lists.fedoraproject.orgFEDORA-2020-51d591d035https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MW6GZCLECGL2PBNHVNPJIX4RPVRVFR7R/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2020-bf829f9a84https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OB4GSVOJ6ESHQNT5GSV63OX5D4KPSTGT/vendor-advisoryx_refsource_FEDORA
• support.apple.comhttps://support.apple.com/kb/HT211288x_refsource_CONFIRM
• support.apple.comhttps://support.apple.com/kb/HT211289x_refsource_CONFIRM
• seclists.org20200717 APPLE-SA-2020-07-15-2 macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierrahttp://seclists.org/fulldisclosure/2020/Jul/24mailing-listx_refsource_FULLDISC
• seclists.org20200717 APPLE-SA-2020-07-15-1 iOS 13.6 and iPadOS 13.6http://seclists.org/fulldisclosure/2020/Jul/23mailing-listx_refsource_FULLDISC
• lists.apache.org[bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3Emailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20220223 Fwd: Cyrus-SASL 2.1.28 released [fixes CVE-2022-24407 & CVE-2019-19906]http://www.openwall.com/lists/oss-security/2022/02/23/4mailing-listx_refsource_MLIST
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html