CVE-2023-49994
NixOS vulnerability analysis and mitigation

Overview

A floating point exception vulnerability was discovered in Espeak-ng version 1.52-dev, specifically in the PeaksToHarmspect function within the wavegen.c file. The vulnerability was assigned CVE-2023-49994 and has been given a CVSS v3.1 base score of 5.5 (Medium) (NVD).

Technical details

The vulnerability manifests as a floating point exception in the PeaksToHarmspect function located in wavegen.c. The issue was identified at line 456 of the source file. The vulnerability has been assigned a CVSS v3.1 vector of CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H, indicating local access requirements and potential for high availability impact (NVD).

Impact

The vulnerability affects the availability of the system by causing a floating point exception that can lead to program termination. The CVSS scoring indicates no impact on confidentiality or integrity, but a high impact on availability (NVD).

Mitigation and workarounds

The vulnerability has been fixed in several distributions including Fedora with version 1.51.1-6 and Debian bookworm with version 1.51+dfsg-10+deb12u2. Users are advised to update to the patched versions (Fedora Update, Debian Tracker).

Additional resources


SourceThis report was generated using AI

Related NixOS vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-68120MEDIUM5.4
  • NixOSNixOS
  • go
NoYesDec 30, 2025
CVE-2025-69413MEDIUM5.3
  • NixOSNixOS
  • code.gitea.io/gitea
NoYesJan 01, 2026
CVE-2025-15412MEDIUM4.8
  • NixOSNixOS
  • wabt
NoNoJan 01, 2026
CVE-2025-15411MEDIUM4.8
  • NixOSNixOS
  • wabt
NoNoJan 01, 2026
CVE-2025-68932LOW2.9
  • NixOSNixOS
  • freshrss
NoYesDec 27, 2025

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management