CVE-2023-5721

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

0.79% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 53.4% 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:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. 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

2023-10-24 12:47Z2 YR AGO

Last updated

2025-02-13 17:25Z1 YR AGO

Reserved

2023-10-23

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-1021Improper Restriction of Rendered UI Layers or FramesBase
• CWE-356Product UI does not Warn User of Unsafe ActionsBase

Data version

5.1

Document digest

709215c3a28a76845932364b5761682e52ba3e00cd87ba2208115427b2a7f065

• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1830820
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-45/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-46/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-47/
• www.debian.orghttps://www.debian.org/security/2023/dsa-5535
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/10/msg00037.html
• www.debian.orghttps://www.debian.org/security/2023/dsa-5538
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2023/10/msg00042.html