CVE-2023-4576

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

0.82% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 56.8% of scored records. A rank, not a probability.

NVD base score

8.6 (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:C/C:H/I:N/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

2023-09-11 08:00Z3 YR AGO

Last updated

2025-12-18 15:23Z10 MO AGO

Reserved

2023-08-29

Assigning CNA

mozilla

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

26ab0ff47c7d1778d98a9f7185edaf2a6134b06e80ecf7d7420a90cb1f7b920a

• bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1846694
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-34/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-35/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-36/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-37/
• www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2023-38/