Is CVE-2023-34417 actively exploited?

No active exploitation of CVE-2023-34417 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-34417 be exploited remotely?

Yes. CVE-2023-34417 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-34417?

CVE-2023-34417 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-34417

CRITICAL

CVE-2023-34417

CWE-787Published: June 19, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Memory safety bugs present in Firefox 113. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 114.

NVD Source

Risk Analysis

Firefox versions prior to 114 contain memory safety bugs that could potentially be leveraged for arbitrary code execution. Given the critical CVSS score, users are at risk if they encounter malicious content designed to trigger these memory corruption issues.

The vulnerability is remotely exploitable with low complexity, but there is no known public exploit.

Recommended Action

Update Firefox to version 114 or later to resolve these memory safety issues.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-34417 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.