CVE-2020-28196

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

4.42% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 90.5% 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 2026-06-17.

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

2020-11-06 07:07Z5 YR AGO

Last updated

2025-12-03 18:15Z9 MO AGO

Reserved

2020-11-03

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

• CWE-674Uncontrolled RecursionClass

Data version

5.2

Document digest

71a7ae5f27d53405283ed3a6ed57c5f783b976c74010546a0a2d09a1de5c25af

• lists.debian.org[debian-lts-announce] 20201107 [SECURITY] [DLA 2437-1] krb5 security updatehttps://lists.debian.org/debian-lts-announce/2020/11/msg00011.htmlmailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2020-32193cbbe6https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/73IGOG6CZAVMVNS4GGRMOLOZ7B6QVA7F/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2020-27b577ab23https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPH2V3WSQTELROZK3GFCPQDOFLKIZ6H5/vendor-advisoryx_refsource_FEDORA
• security.gentoo.orgGLSA-202011-17https://security.gentoo.org/glsa/202011-17vendor-advisoryx_refsource_GENTOO
• lists.fedoraproject.orgFEDORA-2020-0df38b2843https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/45KKOZQWIIIW5C45PJVGQ32AXBSYNBE7/vendor-advisoryx_refsource_FEDORA
• www.debian.orgDSA-4795https://www.debian.org/security/2020/dsa-4795vendor-advisoryx_refsource_DEBIAN
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuApr2021.htmlx_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210513-0002/x_refsource_CONFIRM
• github.comhttps://github.com/krb5/krb5/commit/57415dda6cf04e73ffc3723be518eddfae599bfdx_refsource_CONFIRM
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20201202-0001/x_refsource_CONFIRM
• 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.oracle.comhttps://www.oracle.com//security-alerts/cpujul2021.htmlx_refsource_MISC
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2022.htmlx_refsource_MISC