CVE-2026-3099

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.
• 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

0.36% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 28.5% of scored records. A rank, not a probability.

NVD base score

7.3 (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:L/I:L/A:L

NVD analysis status

Analyzed. 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

2026-03-12 13:53Z5 MO AGO

Last updated

2026-05-01 15:31Z4 MO AGO

Reserved

2026-02-24

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 5.8)

CNA CVSS vector

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

Weaknesses

• CWE-323Reusing a Nonce, Key Pair in EncryptionBase

Data version

5.2

Document digest

cd481dc381a74f30886b95a0095d2b591dd6655b6339aa375b41de099d775c40

• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-3099vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2442232https://bugzilla.redhat.com/show_bug.cgi?id=2442232issue-trackingx_refsource_REDHAT
• gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libsoup/-/issues/495