DEBIAN-CVE-2025-4516

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2025-4516
Downstream
DLA-4445-1
Published: 15 May 2025, 14:15
Last modified:16 May 2026, 14:03

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
5.9 MEDIUM
4.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

15 May 2025, 14:15
Published
Vulnerability first disclosed
16 May 2026, 14:03
Last Modified
Vulnerability information updated

Description

There is an issue in CPython when using `bytes.decode("unicode_escape", error="ignore|replace")`. If you are not using the "unicode_escape" encoding or an error handler your usage is not affected. To work-around this issue you may stop using the error= handler and instead wrap the bytes.decode() call in a try-except catching the DecodeError.

CVSS Metrics

  • v4.0•MEDIUM•Score: 5.9CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected Systems

  • debian•python3.11

    all | < 3.11.2-6+deb12u7

  • debian•python3.13

    < 3.13.3-4 | < 3.13.3-4

  • debian•python3.9

    < 3.9.2-1+deb11u4

References (1)