What is CVE-2020-23904?

CVE-2020-23904 is a medium-severity vulnerability in Xiph Speex, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2021-11-10.

How severe is CVE-2020-23904?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2020-23904 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Xiph Speex

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.

Vulnerability class: Buffer Overflow

EPSS: 0.007 (49.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Xiph Speex — versions 1.2
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2020-23904?: CVE-2020-23904 is a medium-severity vulnerability in Xiph Speex, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2021-11-10.
How severe is CVE-2020-23904?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2020-23904 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.