CVE-2023-49992
CVE-2023-49992 is a medium-severity vulnerability in Espeak-ng with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- EPSS exploit prediction: 0% (32nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Espeak-ng
- Published:
- Last modified:
Description
Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Overflow via the function RemoveEnding at dictionary.c.
Frequently asked questions
- What is CVE-2023-49992?
- Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Overflow via the function RemoveEnding at dictionary.c.
- How severe is CVE-2023-49992?
- CVE-2023-49992 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2023-49992 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-49992?
- CVE-2023-49992 affects Espeak-ng. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-49992?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2023-49992 published?
- CVE-2023-49992 was published on 2023-12-12 and last updated on 2026-06-17.
References
- https://github.com/espeak-ng/espeak-ng/issues/1827
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2PZEBWPNKPAYJMIM3AS2RP3FL6FX3HS4/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z5WW6RKHRWLEMCKCQ6UZCXWC5J7UWMUQ/
- https://lists.debian.org/debian-lts-announce/2025/05/msg00050.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/2PZEBWPNKPAYJMIM3AS2RP3FL6FX3HS4/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/Z5WW6RKHRWLEMCKCQ6UZCXWC5J7UWMUQ/
Affected products (1)
- cpe:2.3:a:espeak-ng:espeak-ng:1.52:dev:*:*:*:*:*:*
More vulnerabilities in Espeak-ng
- CVE-2023-49994 — Medium (CVSS 5.5): Espeak-ng 1.52-dev was discovered to contain a Floating Point Exception via the function PeaksToHarmspect at wavegen.c.
- CVE-2023-49993 — Medium (CVSS 5.3): Espeak-ng 1.52-dev was discovered to contain a Buffer Overflow via the function ReadClause at readclause.c.
- CVE-2023-49991 — Medium (CVSS 5.3): Espeak-ng 1.52-dev was discovered to contain a Stack Buffer Underflow via the function CountVowelPosition at…
- CVE-2023-49990 — Medium (CVSS 5.3): Espeak-ng 1.52-dev was discovered to contain a buffer-overflow via the function SetUpPhonemeTable at synthdata.c.
All CVEs affecting Espeak-ng →
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