CVE-2025-4516

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