CVE-2023-5730

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 ImpacttotalSuccessful exploitation gives total 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

1.46% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 71.6% of scored records. A rank, not a probability.

NVD base score

9.8 (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:H/I:H/A:H

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-787Out-of-bounds WriteBase
• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base

Data version

5.1

Document digest

012b2d1305da67b0f12e3443af020b31a128a2ae3a2c48b4cc9c9b23c22e2eb8

• bugzilla.mozilla.orgMemory safety bugs fixed in Firefox 119, Firefox ESR 115.4, and Thunderbird 115.4.1https://bugzilla.mozilla.org/buglist.cgi?bug_id=1836607%2C1840918%2C1848694%2C1848833%2C1850191%2C1850259%2C1852596%2C1853201%2C1854002%2C1855306%2C1855640%2C1856695
• 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