CVE-2020-23904
CVE-2020-23904 is a medium-severity vulnerability in Xiph Speex with a CVSS 3.x base score of 5.5. 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 5.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Xiph Speex
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2020-23904?
- 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.
- How severe is CVE-2020-23904?
- CVE-2020-23904 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-23904 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-23904?
- CVE-2020-23904 affects Xiph Speex. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-23904?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-23904 published?
- CVE-2020-23904 was published on 2021-11-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:xiph:speex:1.2:-:*:*:*:*:*:*
More vulnerabilities in Xiph Speex
- CVE-2008-1686 — Critical (CVSS 9.3): Array index vulnerability in Speex 1.1.12 and earlier, as used in libfishsound 0.9.0 and earlier, including Illiminable…
- CVE-2020-23903 — Medium (CVSS 5.5): A Divide by Zero vulnerability in the function static int read_samples of Speex v1.2 allows attackers to cause a denial…
All CVEs affecting Xiph Speex →
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