CVE-2022-39209

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

2.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 81.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2022-09-15 00:00Z4 YR AGO

Last updated

2025-04-23 17:10Z1 YR AGO

Reserved

2022-09-02

Assigning CNA

GitHub_M

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-400Uncontrolled Resource ConsumptionClass
• CWE-407Inefficient Algorithmic ComplexityClass

Data version

5.1

Document digest

1afbca26875d62007d3040fc509749009be81a499885a2585aac1c1b5ea5314d

• github.comhttps://github.com/github/cmark-gfm/security/advisories/GHSA-cgh3-p57x-9q7q
• github.comhttps://github.com/github/cmark-gfm/commit/9d57d8a23142b316282bdfc954cb0ecda40a8655
• en.wikipedia.orghttps://en.wikipedia.org/wiki/Time_complexity
• lists.fedoraproject.orgFEDORA-2022-6bcee2cc93https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JMGP65NANDVKPDMXMKYO2ZV2H2HZJY4P/vendor-advisory
• lists.fedoraproject.orgFEDORA-2022-f1aed93db8https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JIUCZN3PEKUCT2JQYQTYOVIJG2KSD6G7/vendor-advisory
• lists.fedoraproject.orgFEDORA-2022-dc6d6d9d6chttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEAAAI4OULDYQ2TA3HOXH54PC3DCBFZS/vendor-advisory