A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of…
Priority LOW 26CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.
Summary
A stack buffer overflow in speexenc.c of Speex v1.2 allows attackers to cause a denial of service (DoS) via a crafted WAV file. NOTE: the vendor states "I cannot reproduce it" and it "is a demo program.
Why it matters now
EPSS 0.00719 54th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2020-23904
- 2026-10-03 Alias added: GHSA-3p3f-h63v-47c5
References
More xiph Speex vulnerabilities
- TI-2008-01616 Array index vulnerability in Speex 1.1.12 and earlier, as used in libfishsound 0.9.0 and… CVSS 2.0HIGH 9.3
- TI-2020-14721 A Divide by Zero vulnerability in the function static int read_samples of Speex v1.2… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2020-23904 · CVE Program
- CVE-2020-23904 · NVD
- FIRST EPSS
- GHSA-3p3f-h63v-47c5 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-23904 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences