CVE-2025-4516

EUVD-2025-15156
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 18%
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
python2.7
bionic
not-affected
focal
not-affected
jammy
not-affected
noble
dne
oracular
dne
plucky
dne
questing
dne
trusty
not-affected
xenial
not-affected
python3.10
focal
dne
jammy
Fixed 3.10.12-1~22.04.10
released
noble
dne
oracular
dne
plucky
dne
questing
dne
python3.11
focal
dne
jammy
Fixed 3.11.0~rc1-1~22.04.1~esm4
released
noble
dne
oracular
dne
plucky
dne
questing
dne
python3.12
focal
dne
jammy
dne
noble
Fixed 3.12.3-1ubuntu0.6
released
oracular
Fixed 3.12.7-1ubuntu2.1
released
plucky
dne
questing
dne
python3.13
focal
dne
jammy
dne
noble
dne
oracular
ignored
plucky
Fixed 3.13.3-1ubuntu0.1
released
questing
not-affected
python3.14
focal
dne
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
Fixed 3.14.0-1
released
python3.4
focal
dne
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
trusty
not-affected
python3.5
focal
dne
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
trusty
not-affected
xenial
not-affected
python3.6
bionic
Fixed 3.6.9-1~18.04ubuntu1.13+esm5
released
focal
dne
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
python3.7
bionic
Fixed 3.7.5-2ubuntu1~18.04.2+esm6
released
focal
dne
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
python3.8
bionic
Fixed 3.8.0-3ubuntu1~18.04.2+esm5
released
focal
Fixed 3.8.10-0ubuntu1~20.04.18+esm1
released
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne
python3.9
focal
Fixed 3.9.5-3ubuntu0~20.04.1+esm5
released
jammy
dne
noble
dne
oracular
dne
plucky
dne
questing
dne