🛡️ CVE-2021-41499 — pyo

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-120 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Classic Buffer Overflow in pyo

Buffer Overflow Vulnerability exists in ajaxsoundstudio.com in Pyo < 1.03 in the Server_debug function, which allows remote attackers to conduct DoS attacks by deliberately passing on an overlong audio file name.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2021-41499 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.

Affected software

CVE-2021-41499 is recorded against 1 package.

  • pyo (fixed in 1.0.3)

Timeline and source

Published on 7 January 2022 and last revised on 6 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)

CVE-2021-41499 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-120
Public Exploit ✅ No
Source OSV
Published 2022-01-07
Updated 2026-08-12
Modified 2026-07-06
Fix URL N/A

Affected Packages

Software From version Fixed in
pyo — 1.0.3

Site Security Check

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