CVE-2024-39920

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

0.57% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 45.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. 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

2024-07-03 00:00Z2 YR AGO

Last updated

2024-08-05 18:37Z2 YR AGO

Reserved

2024-07-03

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 4.3)

CNA CVSS vector

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

Weaknesses

• CWE-1255Comparison Logic is Vulnerable to Power Side-Channel AttacksVariant
• CWE-385Covert Timing ChannelBase

Data version

5.1

Document digest

852bea6e8e72725b93f17204ad2ff9ee22cd3424b4e3e9bf90b9dea680b836b3

• www.snailload.comhttps://www.snailload.com
• www.snailload.comhttps://www.snailload.com/snailload.pdf
• github.comhttps://github.com/IAIK/SnailLoad
• www.rfc-editor.orghttps://www.rfc-editor.org/rfc/rfc9293.txt
• www.tugraz.athttps://www.tugraz.at/en/tu-graz/services/news-stories/tu-graz-news/singleview/article/neue-sicherheitsluecke-erlaubt-ueberwachung-besuchter-websites-und-angesehener-videos
• twitter.comhttps://twitter.com/tugraz/status/1805272833322299412
• news.ycombinator.comhttps://news.ycombinator.com/item?id=40809629
• www.instagram.comhttps://www.instagram.com/p/C8wpO1UtExw/