CVE-2023-49083

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.98% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 59.8% 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

2023-11-29 18:50Z2 YR AGO

Last updated

2025-12-18 15:32Z8 MO AGO

Reserved

2023-11-21

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 5.9)

CNA CVSS vector

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

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

8f98b55cae5a6416b8b3e191ba04e553f88124d76c40e6fcc2a2eed38c58319b

• github.comhttps://github.com/pyca/cryptography/security/advisories/GHSA-jfhm-5ghh-2f97x_refsource_CONFIRM
• github.comhttps://github.com/pyca/cryptography/pull/9926x_refsource_MISC
• github.comhttps://github.com/pyca/cryptography/commit/f09c261ca10a31fe41b1262306db7f8f1da0e48ax_refsource_MISC
• lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QMNTYMUGFJSDBYBU22FUYBHFRZODRKXV/
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/10/msg00012.html